know inside and out

动词 v.
中文释义

英文释义

动词 v.
  1. To know (something or someone) very thoroughly. idiomatic,transitive
    — He's still new to their system, but he knows databases inside and out and will understand the rest soon.

词形变化

knows inside and out present,singular,third-person knowing inside and out participle,present knew inside and out past known inside and out participle,past
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