1) Look before you leap.三思而后行 (2) Burn one's boat.破釜沉舟 (3) Strike while the iron is hot.趁热打铁 (4) An eye for an eye,a tooth for a tooth.以眼还眼,以牙还牙.(5) to lose one's face,to save one's face丢面子,保面子 2)、涵义相似,字面意义不同 (1) The grass is always greener on the other side of the fence.这山望着那山高.(2) Nothing ventured,nothing gained.不入虎穴,焉得虎子 (3) That's a piece of cake.那是小菜一碟.(4) As poor as a church mouse.一贫如洗 (5) Let sleeping dogs lie.切勿打草惊蛇