事倍功半

参考释义

事倍功半[shìbèigōngbàn]

• -gethalftheresultswithdouble[twice]theeffort;labourhardtolittleavail;mountaininlabour;Themountainshavebroughtforthamouse.;twicetheworkwithhalftheresults:

  Donotletyourmountaininlabourbringforthamouse.你不要弄得事倍功半。

  Youwillgethalftheresultswithtwicetheeffortifyoukeepusingtheoldmethod.如果你坚持老办法，必然会事倍功半。