拾遗补阙 Pick up what's left behind, make up for the lacking.
Explanation
拾遗补阙，指补充他人遗漏的事物或弥补过失。
To pick up what has been left behind and make up for what is lacking.
Origin Story
话说唐朝时期，一位名叫李白的才子，曾受邀参加宫廷宴会。席间，皇帝兴致勃勃，命百官赋诗一首。众臣纷纷挥毫泼墨，但多数诗作都略显平庸，缺少新意。李白默默观察，发现许多诗作中，都缺少对景物的细致描写，于是便提笔，将众诗作中所缺之处细细补充，使诗作更加完美，展现出独特的魅力。此举令皇帝龙颜大悦，赞扬李白拾遗补阙之才。
In the Tang Dynasty, there was a talented scholar named Li Bai who was invited to a court banquet. At the banquet, the emperor was in high spirits and ordered his officials to compose a poem. The officials wrote diligently, but most of the poems were mediocre and lacked originality. Li Bai observed silently, but he noticed that many poems lacked a detailed description of the scenery. So he took his pen and supplemented the missing parts of the poems, making them more perfect and unique. The emperor was overjoyed and praised Li Bai's ability to pick up what had been left behind and make up for what was lacking.
Usage
主要用于形容对工作、学业等认真负责，能够发现并弥补他人不足的态度。
Mainly used to describe the attitude of being serious and responsible for work, studies, etc., and being able to find and make up for the shortcomings of others.
Examples
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这份报告有很多遗漏之处，需要我们拾遗补阙。
zhè fèn bàogào yǒu hěn duō yí lòu zhī chù,xūyào wǒmen shí yí bǔ què.
This report has many omissions that need to be supplemented.
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他为人正直，总是拾遗补阙，帮助他人。
tā wéi rén zhèngzhí, zǒng shì shí yí bǔ què, bāngzhù tā rén.
He is an upright person, always supplementing and correcting, helping others.