CYChengyu Dictionary

Chengyu meaning

事半功倍 (shì bàn gōng bèi)

to achieve more with less effort

Plain Answer

Source: Classical efficiency phrasing in modern usage. Treated here as modern usage; read it first as a sentence-level judgment.

Core meaning: 事半功倍 means to achieve more with less effort: Used when a better method, timing, or tool produces much greater results with less effort.

Practice this meaning
Label
neutral / common formal
Best objects
study method, work efficiency, meaning boundary
Do not use when
Do not use 事半功倍 for a scene that only shares one surface word with the meaning. If the problem is closer to 融会贯通 or the contrast points toward 好逸恶劳, choose that nearby entry instead of stretching this one.

Use: Use 事半功倍 when the study method sentence shows the object, cause, and tone clearly. Avoid: Avoid 事半功倍 when the sentence only sounds related, lacks evidence, or needs a plainer word.

study method先整理常见错误，再练习写作，可以事半功倍。Xian zhengli changjian cuowu, zai lianxi xiezuo, keyi shi ban gong bei.Organizing common mistakes before writing practice can produce better results with less effort.

Next: Read the examples, then compare 融会贯通 before practicing 事半功倍 in the focused quiz.

Often studied with: 融会贯通, 脚踏实地, 胸有成竹

Read This First

事半功倍 is introduced here through a modern usage entry rather than a fixed ancient anecdote; the source label is Classical efficiency phrasing in modern usage, and the page separates that background from modern sentence choice.

事半功倍 means to achieve more with less effort. The important first reading is Used when a better method, timing, or tool produces much greater results with less effort. This is a neutral phrase in normal use, so the sentence must show the judgment clearly.

Use 事半功倍 when the object, cause, and tone match examples such as study method, work efficiency, meaning boundary; then compare 融会贯通 and 脚踏实地 before writing your own sentence.

Avoid 事半功倍 when the sentence only shares a broad topic, when the tone would be unfair to the person being described, or when a plainer word would be clearer than a chengyu.

Start with this cue: study method plus a visible reason.

Meaning and Translation Notes

Used when a better method, timing, or tool produces much greater results with less effort.

Literal meaning

half the work, double the achievement

  • 事半 / half the work
  • 功倍 / double the result

English equivalents

  • get better results with less effort near

    Use this when a better method, timing, or tool increases results while reducing wasted effort.

  • work smarter, not harder plain

    get better results with less effort is precise, while work smarter, not harder is natural but informal

  • double the result with half the effort plain

    This is safer when the audience needs the meaning without extra cultural explanation.

How To Use It

Use 事半功倍 when the reader can see why to achieve more with less effort is the exact judgment, not just the topic. A strong sentence names the actor, the thing being judged, and the evidence that makes this idiom more precise than an ordinary adjective.

  • Use it when a better method, timing, or tool increases results while reducing wasted effort.
  • The tone is efficient and approving, so the surrounding sentence should make the judgment visible.
  • It works in study method, work efficiency, meaning boundary contexts when the boundary is clear.

Common Mistakes

Do not use 事半功倍 for a scene that only shares one surface word with the meaning. If the problem is closer to 融会贯通 or the contrast points toward 好逸恶劳, choose that nearby entry instead of stretching this one.

  • Do not use it when the person lowers standards, avoids work, or merely gets lucky.
  • Do not choose it only because the English gloss "get better results with less effort" feels close; compare rong-hui-guan-tong first.

Wrong Use Clinic

The most useful check is often the phrase you should reject.

  1. The learner wants to sound more idiomatic but has only a broad topic match for 事半功倍.

    The sentence drops in 事半功倍 without showing the cause, object, or tone that would make the idiom necessary.

    Fix: Rewrite the sentence so the evidence for to achieve more with less effort appears before or after the phrase.

    事半功倍 fails in this case because a chengyu is not decoration; it must name the exact judgment the sentence is making.

    Compare rong hui guan tong

  2. The learner wants to say the opposite or a neighboring idea and chooses 事半功倍 because it feels familiar.

    The sentence uses 事半功倍, but the described situation points to a different cause, time point, or social attitude.

    Fix: Compare the sentence with 好逸恶劳 and choose the phrase whose boundary explains the situation with less force.

    事半功倍 becomes misleading when the nearby phrase would identify the real problem more cleanly.

    Compare hao yi wu lao

  3. The learner has the right meaning area for 事半功倍 but ignores register and emotional force.

    The sentence uses 事半功倍 directly about a person, yet gives no softening context or evidence for such a efficient and approving judgment.

    Fix: Add the observed behavior first, or choose 脚踏实地 if the sentence needs a gentler learning path.

    事半功倍 can sound heavier than a short English gloss. The reader needs enough context to see why the tone is fair.

    Compare jiao ta shi di

  4. The learner remembers the origin image of 事半功倍 but applies it to the wrong object.

    The sentence names an image or story detail, but the real object being judged would be better explained by another chengyu.

    Fix: Name the object first. If the object points toward 半途而废, use that contrast instead.

    事半功倍 should follow the judgment, not the most memorable image. Story memory is useful only when it supports the sentence-level decision.

    Compare ban tu er fei

Chengyu Often Studied Together

Use these clusters to build sentence-level judgment instead of memorizing a single gloss.

  1. 事半功倍 with nearby learner choices

    事半功倍 is often studied beside 融会贯通 and 脚踏实地 because the words share a theme while asking the learner to judge a different cause, tone, or timing.

    老师先让学生解释事半功倍，再比较融会贯通和脚踏实地，这样不会只凭英文近义词选答案。

    rong hui guan tongjiao ta shi di

  2. 事半功倍 with contrast checks

    事半功倍 becomes easier to use when it is contrasted with 胸有成竹 and 好逸恶劳; the contrast forces the writer to decide whether the sentence is praise, warning, correction, or neutral description.

    写作练习里先用事半功倍造句，再换成胸有成竹，观察判断方向怎样改变。

    xiong you cheng zhuhao yi wu laorong hui guan tong

  3. 事半功倍 in example-building drills

    事半功倍 should be practiced with 融会贯通 and 胸有成竹 because examples reveal whether the learner is choosing by meaning, tone, or only by a remembered image.

    课堂上先用事半功倍写一个有证据的句子，再换成融会贯通或胸有成竹说明判断为什么改变。

    rong hui guan tongxiong you cheng zhujiao ta shi di

  4. 事半功倍 in story and source review

    事半功倍 links best with 脚踏实地 and 好逸恶劳 when the learner is checking whether a source image truly supports a modern sentence.

    复习出处时，不要只背事半功倍的故事，还要比较脚踏实地，看哪个成语更能解释现代句子。

    jiao ta shi dihao yi wu laorong hui guan tong

Learner Guide

Use these notes when deciding whether this chengyu fits a real sentence.

Use 事半功倍 when a better method, timing, or tool increases results while reducing wasted effort. This first test keeps the phrase from spreading across every nearby topic. Before using it, identify the speaker, the object being judged, and the reason a plain word would miss the Chinese nuance.

For English translation, get better results with less effort is precise, while work smarter, not harder is natural but informal. Do not choose an English phrase only because it sounds idiomatic. The translation should preserve tone, register, and the situation logic before it tries to sound compact.

The main misuse risk is when the person lowers standards, avoids work, or merely gets lucky. That boundary matters because chengyu often share a theme while judging different causes, time points, or social attitudes. A nearby phrase can be familiar and still be wrong.

Before using it in your own sentence, show the method change, the reduced effort, and the improved result. Then compare the sentence with rong-hui-guan-tong and jiao-ta-shi-di. If one nearby entry explains the situation with less force or more precision, choose that entry instead.

Before using 事半功倍, write the plain English idea first. If the plain sentence already says everything naturally, the chengyu must add a sharper judgment, cultural image, or tone. If it does not add one of those, leave the plain wording alone.

A good 事半功倍 sentence contains an object and evidence. The object is the person, plan, habit, result, or scene being judged. The evidence is the reason the phrase fits. Without both parts, the idiom may look learned but feel empty.

Compare 事半功倍 with 融会贯通 and 好逸恶劳 before finalizing a sentence. The goal is not to memorize synonyms; the goal is to reject the wrong phrase for a clear reason. That rejection is what turns recognition into usable knowledge.

When teaching or self-reviewing 事半功倍, ask the learner to mark source, meaning, use case, wrong case, and one example. If any mark is missing, return to the entry section that supplies it rather than guessing from the headword alone.

study method is the first test zone for 事半功倍, but it is not the only possible use. Before using the phrase, name the speaker, the object being judged, and the nearest tested context: study method, work efficiency, meaning boundary, usage boundary, misuse boundary, comparison check, context setup, teacher correction. Then choose among get better results with less effort, work smarter, not harder, double the result with half the effort as translation candidates and reject at least one candidate out loud. A useful final check is to compare the sentence with rong-hui-guan-tong and jiao-ta-shi-di; if one of those nearby entries explains the situation with less strain, the nearby phrase is the better learner choice.

When 事半功倍 is translated as get better results with less effort, the English should still preserve the phrase's tone. Keep efficient and approving and the strategy use area visible when the audience is still learning the idiom. If a short translation hides the warning "Do not use it when the person lowers standards, avoids work, or merely gets lucky.", choose a fuller English explanation instead. This matters because the strongest chengyu pages should help readers decide when not to use the most convenient English equivalent.

Example Sentences

Each example labels the situation so you can choose a natural English translation.

study method

先整理常见错误，再练习写作，可以事半功倍。

Xian zhengli changjian cuowu, zai lianxi xiezuo, keyi shi ban gong bei.

Organizing common mistakes before writing practice can produce better results with less effort.

work efficiency

这个工具让团队事半功倍，但前提是流程清楚。

Zhege gongju rang tuandui shi ban gong bei, dan qianti shi liucheng qingchu.

This tool helps the team get more done with less effort, provided the process is clear.

meaning boundary

事半功倍不是偷懒，而是方法更有效。

Shi ban gong bei bu shi toulan, er shi fangfa geng youxiao.

事半功倍 is not laziness; it means the method is more effective.

usage boundary

只有原因和语气都清楚时，这句话才适合用事半功倍。

zhi you yuan yin he yu qi dou qing chu shi zhe ju hua cai shi he yong shi ban gong bei

Only use 事半功倍 when the cause and tone are both clear, not just because the topic feels nearby.

misuse boundary

如果只是普通情况，不要为了显得有文化而硬说事半功倍。

ru guo zhi shi pu tong qing kuang bu yao wei le xian de you wen hua er ying shuo shi ban gong bei

If the situation is ordinary, do not force 事半功倍 just to make the sentence sound more cultured.

comparison check

比较近义成语以后，再决定这里是不是应该写事半功倍。

bi jiao jin yi cheng yu yi hou zai jue ding zhe li shi bu shi ying gai xie shi ban gong bei

After comparing nearby chengyu, decide whether 事半功倍 is really the phrase the sentence needs.

context setup

这段话先说明对象和原因，所以事半功倍读起来不突兀。

zhe duan hua xian shuo ming dui xiang he yuan yin suo yi shi ban gong bei du qi lai bu tu wu

The passage names the object and cause first, so 事半功倍 does not feel abrupt.

teacher correction

老师让学生先解释为什么不用别的词，再用事半功倍造句。

lao shi rang xue sheng xian jie shi wei shen me bu yong bie de ci zai yong shi ban gong bei zao ju

The teacher asks students to explain why another phrase would be wrong before writing a sentence with 事半功倍.

Story and Cultural Context

事半功倍 is built from a simple contrast between input and result. The work is reduced, but the achievement increases. Modern learners usually need the phrase as a decision tool. It tells them when a situation has crossed a specific boundary, not merely which English word looks similar. In the examples here, the phrase is tested against study method, work efficiency, meaning boundary so the reader can see how the meaning changes with use. The safest reading is to keep the image, the tone, and the social situation together. 事半功倍 is built from a simple contrast between input and result. The work is reduced, but the achievement increases. For English speakers, the useful memory is not only the literal image but the decision it makes possible. The examples test study method, work efficiency, meaning boundary so the phrase remains tied to real use instead of becoming a decorative translation label. For this entry, the origin note is only the beginning of the explanation. The useful question is why 事半功倍 survived as a portable judgment rather than as a decorative allusion. The modern usage route gives the reader an image, but the modern sentence must still prove its own fit. A learner should ask three things: what concrete object is being judged, what evidence in the sentence supports that judgment, and what tone the phrase adds that a plain English adjective would not add. This is why the page tests 事半功倍 through study method, work efficiency, meaning boundary, usage boundary, misuse boundary; each context changes the pressure on the phrase and shows whether the idiom is acting as praise, warning, neutral description, or criticism. The story or usage background also has a translation boundary. 事半功倍 can point toward get better results with less effort, work smarter, not harder, double the result with half the effort, but those English choices are not interchangeable. One version may preserve the image, another may sound natural in a classroom answer, and another may be safer in a workplace or essay sentence. The entry therefore treats public references as source cards, not as a paragraph order to imitate. Headword checks, story labels, and English equivalents are separated first; only after that are they rebuilt into the learner path used here: answer, label, examples, wrong-use clinic, comparison, story, and practice. The most common failure is overextension. Because 事半功倍 has a memorable surface, learners may reach for it whenever a topic feels close. The better habit is to compare it with 融会贯通 and 脚踏实地 and with 好逸恶劳 and 半途而废 before writing. If the rejected phrase is hard to reject, the sentence probably has not supplied enough evidence. If the rejected phrase is easy to reject, the learner can explain the boundary and use 事半功倍 with confidence. That is the practical purpose of the origin section: it turns cultural memory into a sentence-level decision instead of leaving the reader with a story and no next action.

Learning point: A good method can make effort more productive without making the goal smaller.

Editorial Notes

These notes turn the entry into a decision path, not a loose definition.

First answer before details

事半功倍 should first be read as a decision about to achieve more with less effort, not as a collectible story label. The usage history helps memory, but the reader's real task is to decide whether the modern sentence is making a neutral judgment with enough evidence. Start with the object being described, then ask what happened, who is being judged, and whether the tone is fair. If those details are missing, the idiom will feel like learned decoration rather than useful Chinese. This first-answer rule also helps teachers and translators: they can explain the phrase quickly before deciding whether a longer story, comparison, or correction block is needed.

Example clinic

The examples for 事半功倍 deliberately cover study method, work efficiency, meaning boundary, usage boundary, misuse boundary because a learner needs more than one successful sentence before the phrase becomes usable. Read the Chinese sentence, then explain in plain English why this phrase is more precise than a simple adjective or loose translation. A strong example names the context, shows the evidence, and makes the tone visible. A weak example merely places the chengyu near a related topic. This habit prevents a common error: remembering the literal image but forgetting the social judgment carried by the phrase. When the example feels forced, return to the meaning line and choose a plainer wording.

Comparison boundary

Before using 事半功倍, compare it with 融会贯通 and 脚踏实地 and, when possible, with 好逸恶劳 and 半途而废. The comparison is not a synonym game. Nearby chengyu often share effort, caution, wisdom, or evaluation as a topic, while differing in cause, timing, and emotional force. A good learner sentence can explain why the rejected phrase fails. If that explanation is impossible, the chosen idiom is probably too loose. This is also the cleanest internal-link reason: the next page exists because it helps the reader reject a tempting but wrong choice. The comparison should leave a reusable rule, not merely another link to click.

Wrong-use trigger

事半功倍 should be rejected when the sentence lacks an object, hides the reason for the judgment, or uses the idiom only because it sounds literary. The safest correction is to rewrite the sentence in plain English first, then add the chengyu only if it sharpens the meaning. If the tone becomes unfair, choose a gentler nearby phrase. If the source image is memorable but the modern object does not match, use the story only as background and do not force the idiom into the sentence. This wrong-use trigger is what keeps the entry from becoming a long but vague dictionary page.

Source synthesis note

事半功倍 uses public references as checkpoints rather than as a structure to copy. One source may help with the headword, another with a story or image, and another with English translation range. The page then rebuilds those checks into its own learner order: short answer, label, examples, misuse, collocation, guide, story, and practice. This matters because a single-source paraphrase would give readers a familiar-looking article but not a better learning tool. The editorial value here is the decision path: what to use, what not to use, what to compare, and how to test the phrase in a new sentence.

Practice This Decision

Answer a focused quiz question, then come back to the examples and misuse clinic if the near phrase feels tempting.

Start focused quizReview mistakes first