大材小用---cut blocks with arazor



九牛一毛---a drop in the bucket



忙忙碌碌---as busy as a bee



空中楼阁---castle in the air



颠倒黑白---take black into whirt



欲速不达---The more haste,the less speed



脍炙人口---be on everybody's lips



明日黄花---The is no news



一叶知秋---A straw shows which way the wind blows



一举两得---Kill two birds with one stone



未雨绸缪---Provide against a rainy day



大题小作---make a mountain of a molehill



爱群之马---a black sheep



出类拔萃---rise abovethe devil



否积泰来---After a storm,comes a calm



班门弄斧---teach your grandmother how to suck eggs

看的时候,帮我留一下我是不是有打错的单词,谢谢了!

我也有好多.......有空再来发表....