A patient in a lunatic asylum is fishing in a dry pond when a nurse passing by tries to tease him.

疯人院里有一个精神病患者守着一个干涸了的池塘在钓鱼。一个护士从旁边经过，看到这一幕觉得很好笑，便走上去逗弄他。

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For example, a pond in hilly country that maintains a steady water level all through a dry summer in spite of having no streams flowing into it must obviously be seepage dominated.

例如，在丘陵地区的一个池塘，尽管没有小溪流入但在整个干燥的夏季保持稳定的水位，显然一定是以渗流为主。

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The little pond ran dry.

那个小池塘干涸了。

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In the week following the tsunami, it became clear that the pond was running dry, meaning that fuel rods would have heated up.

BBC: Fukushima: As bad as Chernobyl?

Apple is a small fish, and the pond is going dry.

FORBES: Apple R.I.P.