When there is frost or a frost, the temperature outside falls below freezing point and the ground becomes covered in ice crystals.
例句
There is frost on the ground and snow is forecast...地上結(jié)霜了，而且預(yù)報(bào)說(shuō)會(huì)有雪。The wind had veered to north, bringing clear skies and a keen frost.風(fēng)向已經(jīng)轉(zhuǎn)北，帶來(lái)了晴朗的天空和嚴(yán)重的霜凍。
PHRASE
冰點(diǎn)以下…度;零下…度
When someone says that there are a particular number of degrees of frost they mean that the temperature is that number of degrees below freezing point.
例句
We had 11 degrees of frost last night.昨天夜里氣溫降到了零下 11 度。
英漢詞典釋義
vt. & vi.
(使)結(jié)冰霜
The fields have frosted up in this wintry morning.在這寒冷的早晨田野里覆蓋著一層霜。The cold has frosted the windows.寒冷的天氣使窗子結(jié)滿了霜。
vt.
凍壞
The drop in temperature frosted the tomato plants.氣溫下降凍壞了番茄苗。
n.
霜凍, 嚴(yán)寒天氣
Frosts spoil the last of the flowers.霜凍凍壞了最后一批花朵。
英英詞典釋義
Noun
1. ice crystals forming a white deposit (especially on objects outside)
2. weather cold enough to cause freezing
3. the formation of frost or ice on a surface
Verb
1. decorate with frosting;
"frost a cake"
2. provide with a rough or speckled surface or appearance;
"frost the glass""she frosts her hair"
3. cover with frost;
"ice crystals frosted the glass"
4. damage by frost;
"The icy precipitation frosted the flowers and athey turned brown"