Machine parts of irregular shape can be washed very clean by ultrasonics.用超声波能把形状不规则的机件洗得很干净.In medical and other applications of ultrasonics , a variety of electronic instrumentation is used.超声波在医学和其它应用中, 要使用许多电子仪器设备.Th...
怎么会有人以猎杀这种美丽的动物为乐呢？How could anyone find pleasure in hunting and killing this beautiful creature?他4点钟起了床，徒步出发去猎杀黑琴鸡。He got up at four and set out on foot to hunt black grouse.很多物种已经被猎杀到灭绝的边缘。Many species have been shot t...
After a few weeks with her parents, she felt she was suffocating.和父母呆了几个星期后，她感到自己毫无自由。That's better. I was suffocating in that cell of a room.这样好些了，我刚才在那个小房间里快闷死了。The afternoon heat was suffocating.下午热得让人透不过气来。...