洋底由平坦的平原构成.The ocean bottom is made up of smooth plains.在陆地和洋底要设置许多高增益的台站.Many high - gain stations will be deployed on land and ocean bottom.我们初次潜入大西洋底时心情十分激动.Our initial Atlantic dives were filled with excitement....
Because of her deafness she was hard to make conversation with.因为她的耳聋，别人很难与她交谈。His deafness cut him off from his family and friends.耳聋使他断绝了与亲戚朋友的交流.His deafness is a great affliction to him.耳聋使他非常痛苦....