As the storm began, everyone disappeared below deck(s).

暴风雨来临时，所有的人都躲到甲板下面去了。

《牛津词典》

Each ship was coal-powered by several boilers constantly kept running by exhausted crews below deck.

每艘船都是由几台烧煤的锅炉提供动力，而甲板下的船员不辞辛苦地维持这些锅炉的运行。

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"I was below deck, " he said, "a bunch of bananas belonging to other passengers helped me float until I found a lifeboat."

“我当时在甲板下面，”他说，“其他乘客带上船的一大串香蕉都帮助我一直飘浮在水面上，直到我发现一个救生船。”

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Men, women, juveniles below deck, plants and little fruit trees in a greenhouse above.

NPR: Excerpt: 'Natives and Exotics'

Our double bunkroom below deck is narrow and spartan, but a perfect spot to curl up and read.

WSJ: Heli-Skiing in Greenland

With below deck Bluetooth speakers that stream music from smartphones, this ZBoard lets riders bump jams while cruising the boardwalk.

FORBES: ZBoard: The Weight-Sensing Electric Skateboard From The Future