know like the back of one's hand

英語（米国） (en-US) 英語（イギリス） (en-GB)

動詞

他動詞

(transitive, simile) To be intimately knowledgeable about something.

このボタンはなに？

I know like the back of one's hand the layout of the campus.

詳細

意味（1）

(transitive, simile) To be intimately knowledgeable about something.

He knows the software like the back of his hand, and can often solve problems over the phone, without looking.

詳細

knows like the back of one's hand （ present singular third-person ）

knowing like the back of one's hand （ participle present ）

knew like the back of one's hand （ past ）

known like the back of one's hand （ participle past ）