It can contract into the shape of a little round stone, and sit perfectly still on the seafloor.

它可以收缩成一个小圆石的形状，并完全静止地坐在海底。

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It had, apparently, been fished out of existence; and the once mighty Newfoundland fleet now gropes about frantically for crab on the seafloor.

显然，过度捕捞已经使这里的鳕鱼不复存在了。而曾经很强大的纽芬兰船队现在在海底疯狂地搜寻螃蟹。

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Sea urchins brandish their spines on the seafloor near the Channel Islands.

海胆在海峡群岛附近的海底挥舞着它们的棘突。

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Then bad welding on production manifolds made by FMC Technologies (weakened by months sitting unattended on the seafloor) led to leaks.

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Even farther afield is "The Abyss, " a sci-fi underwater adventure that takes place on a high-tech drilling rig that sits on the seafloor.

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Hurricane Katrina had turned Mars into a pile of steel spaghetti, dumped its 100-ton derrick under 3, 000 feet of water and mangled pipelines on the seafloor.

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