frosts

英 [frɒsts]

美 [frɔːsts]

n. 严寒天气; 霜冻; 冰点以下的温度; 霜
v. (使)蒙上霜，结霜; 给(糕饼)覆上糖霜
frost的第三人称单数和复数

柯林斯词典

N-VAR 霜;霜冻;严寒天气
When there isfrostor afrost, the temperature outside falls below freezing point and the ground becomes covered in ice crystals.
1. There is frost on the ground and snow is forecast...
  地上结霜了，而且预报说会有雪。
2. The wind had veered to north, bringing clear skies and a keen frost.
  风向已经转北，带来了晴朗的天空和严重的霜冻。
PHRASE 冰点以下…度;零下…度
When someone says that there are a particular number ofdegrees of frostthey mean that the temperature is that number of degrees below freezing point.
1. We had 11 degrees of frost last night.
  昨天夜里气温降到了零下 11 度。