鱼鳍是鱼类特有的特征.Fins are a feature specific to fish.我们在电影里经常看到主人公被“鲨鱼的鱼鳍”吓得要死, 结果 仔细一看,原来是海豚.I still remember your being scared to death of a shark's fin.有时,雌鱼为了提醒雄鱼,自己才是真正的主人,会故意找雄鱼的茬,比如刺刺其鱼鳍.The female occasionally rem...
He was preferred to lieutenant.他被晋升为陆军中尉。If I am made chairman, I hope Simon will stay on as my trusted lieutenant.如果我当主席，我希望西蒙作为我信赖的副官，继续留在我的身边。He was commissioned as second lieutenant in the Air Force.他被任命为空军少尉。The Eng...
The sonobuoy permits recording a refraction profile with only one ship.声纳浮标允许只以一艘船来记录折射剖面.Football is a high profile business...足球是一个引人注目的产业。The newspaper publishes a profile of a leading sportsman every week.该报每周刊登一篇关于一...