know like the back of one's hand

动词 v.
中文释义

英文释义

动词 v.
  1. To be intimately knowledgeable about something. transitive
    — He knows the software like the back of his hand, and can often solve problems over the phone, without looking.

词形变化

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 know like the palm of one's hand alternative
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