sea bottom 海底 ; 海床
Needle at Sea Bottom 第十九式 ; 海底针 ; 膍
sea-bottom profile 海底剖面
sea bottom plain 海底平原
sea bottom survey 海底勘测
sea-bottom multiple 海底多次波
sea bottom deposit 海底沈淀物 ; 海底沉积
sea bottom forest 海底森林
The ship sank to the bottom of the sea.
船沉入海底。
Conservationists say longline gear also damages corals and other important habitat on the sea bottom, threatening both the turtles and the fish.
环保人士称延绳钓也破坏了海底的珊瑚和对其它动植物来说很重要的海底栖息地，对鱼类和海龟都造成威胁。
"Something about the chemistry of this sea bottom was very favorable to the preservation of bones," Hurum notes.
“这片海床的某些化学特性非常适合于骨骼的保存，”胡拉姆解释说。
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