如数家珍 (rú shǔ) — to know something thoroughly; to be intimately familiar with every detail
Définition
A chengyu meaning someone knows a topic so well they can list its details as easily as counting their own family treasures. Used to praise deep, intimate familiarity with a subject.
idiom
to know something thoroughlyto be intimately familiar with every detail
Exemples
- 如数家珍。Tā duì zì jǐ shōu cáng de gǔ dǒng rú shǔ.He knows every antique in his collection like the back of his hand.
- 如数家珍。Zhè wèi lǎo jiào shòu duì zhè duàn lì shǐ rú shǔ.The old professor knows this period of history inside out.
- 如数家珍。Tā néng rú shǔ dì liè chū suǒ yǒu shěng fèn de shěng huì.She can rattle off all the provincial capitals with perfect familiarity.
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