English Dictionary

reinvent the wheel

/ˌɹiːɪnˌvɛnt ðə ˈ(h)wiːl/

verb

(idiomatic) 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.

We don't need to reinvent the wheel, we can use existing technology.

意味（1）

(idiomatic) 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.

A narrative circulates at Mitchell, Hall about a naive young employee who, in his eagerness to be creative, reinvents the wheel, devoting so many hours reformulating work that has already been done that he drives himself into a nervous breakdown.