Land that was once at the bottom of the sea now lies around the town in wide, fertile fields; where crabs once crawled, donkeys pick their way.

曾经是海底的陆地现在成了城镇周围广阔肥沃的田野；这里曾经有过螃蟹爬行，现在则有驴子择路而行。

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The ship sank to the bottom of the sea.

船沉入海底。

《牛津词典》

The wreck is lying at the bottom of the sea.

沉船躺在海底。

《牛津词典》

I could tell from the surrounding mountains that we were on the bottom of a long dead sea.

VOA: special.2011.07.23

He conjures the indecorous image of the dead Lycidas under the whelming tide visiting the bottom of the monstrous sea.

他想象死去的利西达斯,在排山倒海的浪潮覆盖下拜访尽是妖怪的海底。

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Taq stands for thermos aquaticus, it's a marine micro-organism that lives near these hydrothermal events in the bottom of the sea and they live under very high temperatures and pressures all the time.

aq是"水生栖热菌"的简称,那是一种生活在靠近深海热液活动区的,海底微生物,它们长期生活在高温高压的环境中

耶鲁公开课 - 生物医学工程探索课程节选

It must be buried under a mountain, sunk to the bottom of the sea, or placed under a thick layer of salt deep under a desert for instance.

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Among the new measures proposed are the phasing out of bottom trawls, the heavy gear that scrapes material from the bottom of the sea - fish, coral and anything else in its way.

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One and all, they were harpooned and dragged up hither from the bottom of the sea.

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