This cold wave is severe enough to freeze over all the rivers and ponds.

这次寒潮很厉害,河流和池塘都得结冰.

《简明英汉词典》

A single night's cold was enough to freeze over the pond.

只要冷一夜就足以使池面结冰.

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In short, pigs can fly and hell really can freeze over.

简单点说, 猪也能飞了,地狱也封冻了.

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The cod swim away; the ice sheets freeze over again.

鳕鱼游走了, 冰原再度冰封起.

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