The "Dragon" has reached the deepest place below the sea in the world.

“蛟龙号”已经到达了世界上最深的海底。

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We may turn to underwater homes, which will be built as low as 15 kilometers below the sea.

我们可能会向于海底15公里处建造的水下住宅发展。

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What does life look like on and below the sea floor?

海底和海底以下的生命是什么样的？

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It ends at the Dead Sea, the lowest point on Earth, four hundred meters below the level of the Mediterranean Sea.

VOA: special.2009.05.18

Far below sea level, they contain some of the harshest environments on Earth, with no oxygen and no light.

VOA: special.2010.11.10

The bears had every single chance to take the markets 20, 000 leagues below the sea.

FORBES: The Three Reasons S&P 500 Is Going To 1,300 Before Year End

These containers float just below the sea surface and represent a serious hazard to navigation.

UNESCO: EDUCATION

The well is gushing because of the pressure the oil is under in its reservoir 4, 300 metres below the sea bed.

ECONOMIST: The Gulf oil spill