了如指掌 (liǎo rú zhǐ zhǎng) — to know something like the back of one's hand; to be thoroughly familiar with
Definition
A chengyu meaning 'to know something as clearly as the palm of your own hand' — total, effortless familiarity with a subject. More emphatic and literary than simply saying 你很了解.
idiom
to know something like the back of one's handto be thoroughly familiar with
Examples
- 了如指掌。Tā duì zhè zuò chéng shì de lì shǐ liǎo rú zhǐ zhǎng.He knows the history of this city like the back of his hand.
- ，了如指掌。Wǒ suī rán méi qù guò nà lǐ, dàn duì dāng dì de fēng sú yě liǎo rú zhǐ zhǎng.Even though I've never been there, I'm thoroughly familiar with the local customs.
- ，了如指掌。Tā zài gōng sī gān le èr shí nián, duì gōng sī yè wù liǎo rú zhǐ zhǎng.He has worked at the company for 20 years and knows its business like the palm of his hand.
Origin
Appears in
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