keep one's ears open

短语

词形变化

keeping one's ears open keeps one's ears open 三单 keeps one's ears open kept one's ears open keeping one's ears open 现在分词 kept one's ears open 过去式 kept one's ears open 过去分词

释义与例句

v.
  1. 1.

    to listen for important information.

    比喻 习语