Chinese scientists found a whale fall for the first time in the South China Sea this year. The whale fall ecosystem can stay in the deep ocean because of great pressure and cold temperature there.

今年，中国科学家首次在南海发现鲸落现象。鲸落生态系统可以停留在深海，因为那里的水压大、温度低。

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These passions, like great winds, have blown me hither and thither, in a wayward course, over a deep ocean of anguish, reaching to the very verge of despair.

这些激情像狂风，把我恣情吹向四方，掠过苦痛的大海，迫使我濒临绝望的边缘。

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We need to take a cold wet plunge into the great deep ocean of thought.

我们需要纵身跳入思维的大海，来冲个凉。

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The stations provide information to many national tsunami information centers and several deep ocean sensors.

VOA: special.2009.03.17

The trench is an extremely deep hole on the floor of the Indian Ocean.

VOA: special.2009.03.17

One language expert says that deep six is the bottom of the ocean.

VOA: special.2009.05.24

Deep Ocean Exploration and Research, with funding from Google's Eric Schmidt, is building two three-person submersibles.

WSJ: A New Wave of Ocean Explorers | Marvels

But Dr Voight says the experience is a wake-up call to everyone working in the deep ocean.

BBC: Warning over deep-ocean stowaways

What happens in the vast, deep ocean, out of sight and beyond the reach of sunlight and satellites?

CNN: Probing the ocean's undiscovered depths