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新东方-柯林斯雅思备考词典
frost
英 [frɒst]
美 [frɔːst]
[NOUN]
frosts
1. [C, U 有变体名词] 霜
When there is frost or a frost, the temperature outside falls below freezing point and the ground becomes covered in ice crystals.
双语例句
例：There is frost on the ground and snow is forecast.
地上结霜了，而且预报说会有雪。