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....
这本敏感的书谨慎、简洁地讨论了收养这一微妙问题。This sensitive book tackles the delicate issue of adoption with care and simplicity." 我们现在的防御工事距离市区只有一英里远."兰德尔队长简洁地说." Our present fortifications are only a mile from town,'said Captain Randa...