Word
hoarfrost
/ˈhɒːfrɒst/
noun
白霜
ice crystals that form a white deposit on outdoor objects
- 1.
ice crystals forming a white deposit (especially on objects outside)
形成白色沉积的冰晶(尤其是在室外物体上)
形成白色沉积的冰晶(尤其是在室外物体上)
In use
The fields were covered with hoarfrost early in the morning.
According to the weather report, hoarfrost may form on bridges tonight.
As the sun rose, the hoarfrost on the window began to melt.
hoarfrost forms on [sth]
Hoarfrost formed on the grass overnight.
一夜之间，白霜凝结在草地上。
covered with hoarfrost
The rooftops were covered with hoarfrost.
屋顶被白霜覆盖。
hoarfrost [verb]
hoarfrost 是不可数名词，通常不加冠词。
Hoarfrost glistened in the morning sunlight.
白霜在晨光中闪烁。
Common mistakes
There is a hoarfrost on the leaves.There is hoarfrost on the leaves.
白霜是物质名词，不可数，因此不能用冠词a修饰。
The weather forecast says there will be hoarfrost tonight.The weather forecast says there will be frost tonight.
hoarfrost特指物体表面形成的白色冰晶，而天气预报中通常用frost泛指霜冻现象。
Connections
Learner notes
Grammar Note
常用作不可数名词
Dictionary facts from ECDICT, WIKTIONARY.