Definition
This is a four-character idiom meaning 'to know something as well as one knows the treasures in one's own home' — i.e., to be thoroughly familiar with every detail. The literal image is counting family heirlooms one by one. Use it when someone can recite facts, list items, or describe something with expert-level precision and ease.
f.e.
to know something thoroughlyto be intimately familiar with every detail
Examples
- 如数家珍。Tā duì zìjǐ shōucáng de gǔdǒng rú shǔ.He knows every antique in his collection like the back of his hand.
- 如数家珍。Zhè wèi lǎo jiàoshòu duì zhè duàn lìshǐ rú shǔ.The old professor knows this period of history inside out.
- 如数家珍。Tā néng rú shǔ de liè chū suǒyǒu shěngfèn de shěnghuì.She can rattle off all the provincial capitals with perfect familiarity.
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