A sinkhole is a natural depression caused by the removal of underground soil by water.

阿灰岩坑是一个天然洼地，由地下土壤除水造成的。

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Surface subsidence (ground depression) caused by the overuse of ground water.

过度抽取地下水引起的地面沉降。

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Xinanzhuang oil field is a typical bottom water oil field of Qintong depression in north Jiangsu.

溪南庄油田是苏北溱潼凹陷典型的底水驱动油田。

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If those in this house survived the Panic of 1893 or the Great Depression, or bathed with cold water and used an outhouse, then surely I know I can weather high gas prices.

NPR: Natural Links in a Long Chain of Being

However, in the midst of the worst recession since the Great Depression, this argument holds no water whatsoever.

FORBES: Suicide by Sequestration