know A from B

短语

词形变化

knew A from B knowing A from B known A from B knows A from B 三单 knows A from B knowing A from B 现在分词 knew A from B 过去式 known A from B 过去式 known A from B 过去分词

释义与例句

v.
  1. 1.

    Synonym of know B from a battledore (“to know anything at all; to have the most basic common sense or intelligence”).