know one's business
As a Chinese idiom, Pinyin is d ā NGH á NGB ě ns è, which means expert and original appearance. It comes from qulv zalun by Wang Jide of Ming Dynasty.
Idiom usage
As an object or attribute; used in composition, etc
The origin of Idioms
In Wang Jide's qulv · zalun of Ming Dynasty, "the way of Zen lies in witticism, so does the way of poetry. But understanding is to do what is right, and it is to be true. "
Analysis of Idioms
Be good at what you do
Chinese PinYin : dāng xíng běn sè
know one's business
cede territory and ask for peace. gē dì qiú hé
Share happiness and difficulties together. yǒu fú tóng xiǎng,yǒu nàn tóng dāng
When people gather firewood, the flame is high. zhòng rén shí chái huǒ yàn gāo
gain victory with unstained swords. bīng wèi xuě rèn