winnow down

短语

词形变化

winnowed down winnowing down winnows down 三单 winnows down winnowing down 现在分词 winnowed down 过去式 winnowed down 过去分词

别名

window down

释义与例句

v.
  1. 1.

    To reduce the number of candidates for something by judging their quality and rejecting some.

    习语 及物