如果夜间的温度已经非常接近冰点，那么仅仅下降几度就可以使温度降到冰点以下。
If temperatures overnight are already very close to the freezing point, then this drop of just a few degrees can take the temperature below freezing.
如果夜间的温度已经非常接近冰点，那么仅仅下降几度就可以使温度降到冰点以下。
If temperatures overnight are already very close to the freezing point, then this drop of just a few degrees can take the temperature below freezing.
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