know like the back of one's hand

短语

了如指掌

发音

AU

词形变化

knew like the back of one's hand knowing like the back of one's hand known like the back of one's hand knows like the back of one's hand 三单 knows like the back of one's hand knowing like the back of one's hand 现在分词 knew like the back of one's hand 过去式 known like the back of one's hand 过去式 known like the back of one's hand 过去分词

别名

know like the palm of one's hand

释义与例句

v.
  1. 1.

    To be intimately knowledgeable about something.

    了如指掌

    及物

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