reinvent the wheel

短语

做无用功

发音

US /ˌɹiːɪnˌvɛnt ðə ˈ(h)wiːl/
UK /ˌɹiːɪnˌvɛnt ðə ˈ(h)wiːl/
AU

词形变化

reinvented the wheel reinventing the wheel reinvents the wheel 三单 reinvents the wheel reinventing the wheel 现在分词 reinvented the wheel 过去式 reinvented the wheel 过去分词

释义与例句

v.
  1. 1.

    To do work unnecessarily when it has already been done satisfactorily by others; to attempt to devise a solution to a problem when a solution already exists.

    做无用功

    重新发明轮子

    习语