frost
noun /frɒst/
  /frɔːst/
 - [uncountable, countable] a weather condition in which the temperature drops below 0° Celsius (= freezing point) so that a thin white layer of ice forms on the ground and other surfaces, especially at night严寒天气;霜冻;冰点以下的温度 - It will be a clear night with some ground frost.今夜晴,部分地面有霜冻。 
- a sharp/hard/severe frost酷寒 
- There were ten degrees of frost (= the temperature dropped to -10° Celsius) last night.昨夜零下 10 摄氏度。 
- frost damage霜冻害 
 Topics Weatherc1- The sharp frost nipped at our noses.寒气刺痛了我们的鼻子。 
- The winter frosts have arrived.下冬霜了。 
- The young plants all died in the late frost.幼苗全在晚霜中冻死了。 
- There was just a touch of frost in the air.空气中略有一丝寒意。 
 Collocations Dictionaryadjective- hard
- heavy
- killing
- …
 - touch
- degree
 - be covered in
- be covered with
 - damage
- date
- line
- …
 - arrive
- come
- set in
- …
 - a danger of frost
- a risk of frost
 
- It will be a clear night with some ground frost.
- [uncountable] the thin white layer of ice that forms when the temperature drops below 0° Celsius霜 - The car windows were covered with frost.车窗玻璃结了霜。 
 Collocations Dictionaryadjective- hard
- heavy
- killing
- …
 - touch
- degree
 - be covered in
- be covered with
 - damage
- date
- line
- …
 - arrive
- come
- set in
- …
 - a danger of frost
- a risk of frost
 
- The car windows were covered with frost.
词源Old English frost, forst, of Germanic origin; related to Dutch vorst and German Frost, also to freeze.