他臂上的两根断骨愈合得很好.The two broken bones in his arm have knitted well.氟骨症骨愈合的实验研究.Experimental study on bone union of osteofluorosis.折骨愈合.The broken bones knit....
飞机设计成流线型以减小风的阻力.The aircraft is streamlined to cut down wind resistance.飞机须克服空气的阻力.An aircraft has to overcome the resistance of the air.这种自行车的设计成功地减少了风的阻力和摩擦力。The design of the bicycle has managed to reduce the effects ...
全校对这场疯狂的恶作剧的全部细节知道得一清二楚.The whole school knew every detail of this made escapade.爱玩闹的学生们举行聚会,制造各种恶作剧来庆祝毕业.Frolicsome students celebrated their graduation with parties and practical jokes.男孩子们喜欢恶作剧.Boys are fond of mischi...