You don't sound like a foreigner talking English...听你讲英语，不像是外国人。The fact that I was a foreigner was a big disadvantage.我是外国人这事实对我十分不利。Being a foreigner, he did not catch on the joke.他是个外国人, 未能理解这个笑话的含意.He was afraid...
The gills of fishes are analogous to the lungs in terrestrial animals.鱼类的鳃与陆上动物的肺类似.Evolution can explain why human embryos look like gilled fishes.进化论能够解释为什么人类的胚胎看起来象除去了内脏的鱼一样.Birds, fishes, and insects lay eggs.鸟下蛋, 鱼和...