# 不遗余力

bù yí yú lì

Put every available effort into something

## Meaning & wording

**Literally:** Leave no spare effort unused

**Traditional Chinese:** 不遺餘力

**Register:** General · spoken & written

[Effort & growth](https://chinese-idioms.yudis.dev/idioms/topics/effort)

## When to use it

Emphasize a wholehearted contribution to a task.

Strong effort should still allow sustainable working habits.

## The image & its use

The image leaves no useful effort sitting unused while a task needs attention. The expression describes commitment that goes beyond a casual attempt. Someone may devote time, concentration, and practical help to making a project work. It is often used appreciatively about a person or team. The phrase concerns the seriousness of their contribution rather than a requirement to exhaust themselves. A concrete description of the work makes the praise more convincing.

## Examples

大家不遗余力地准备展览。

### Traditional Chinese

大家不遺餘力地準備展覽。

dà jiā bù yí yú lì dì zhǔn bèi zhǎn lǎn 。

Everyone put wholehearted effort into preparing the exhibition.

她不遗余力地帮助学生理解课文。

### Traditional Chinese

她不遺餘力地幫助學生理解課文。

tā bù yí yú lì dì bāng zhù xué shēng lǐ jiě kè wén 。

She made every effort to help students understand the text.

团队不遗余力地改进服务。

### Traditional Chinese

團隊不遺餘力地改進服務。

tuán duì bù yí yú lì dì gǎi jìn fú wù 。

The team worked wholeheartedly to improve the service.

我们会不遗余力，也会合理安排时间。

### Traditional Chinese

我們會不遺餘力，也會合理安排時間。

wǒ men huì bù yí yú lì ， yě huì hé lǐ ān pái shí jiān 。

We will make every effort and organize our time sensibly.

## Sources & reference checks

Original explanations and examples from Chinese Idioms Almanac. Source-checked October 7, 2026.

- [Ministry of Education · 成語典](https://dict.idioms.moe.edu.tw/idiomView.jsp?ID=1089&webMd=1&la=0)

- [CC-CEDICT · forms & pronunciation](https://www.mdbg.net/chinese/dictionary?page=worddict&wdqb=%E4%B8%8D%E9%81%BA%E9%A4%98%E5%8A%9B)

## Keep exploring

- [乘风破浪 chéng fēng pò làng Advance boldly through difficulties ](https://chinese-idioms.yudis.dev/idioms/cheng-feng-po-lang)

- [持之以恒 chí zhī yǐ héng Maintain an effort consistently ](https://chinese-idioms.yudis.dev/idioms/chi-zhi-yi-heng)

- [重整旗鼓 chóng zhěng qí gǔ Regroup and prepare to try again ](https://chinese-idioms.yudis.dev/idioms/chong-zheng-qi-gu)

- [踌躇满志 chóu chú mǎn zhì Feel proudly satisfied or confident in one's achievement ](https://chinese-idioms.yudis.dev/idioms/chou-chu-man-zhi)

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