chase down

短语

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词形变化

chased down chases down 三单 chases down chasing down chasing down 现在分词 chased down 过去式 chased down 过去分词

释义与例句

v.
  1. 1.

    to pursue and apprehend someone or something.

  2. 2.

    to investigate the cause of something

    引申义