-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。