例句：
1. The air was thin and crisp, filled with hazy sunshine and frost.
空氣稀薄清新，其間日光蒙眬，寒氣逼人。
2. We had 11 degrees of frost last night.
昨天夜里氣溫降到了零下11度。
3. It will be a clear night with some ground frost .
今夜晴，部分地面有霜凍。
4. Jack Frost was threatening to kill the new plants.
霜降危及新作物的存活。
5. The frost last week was a great calamity to the citrus industry.
上周的霜凍對柑橘種植業是一場大災難.
6. Fill the cooling system with antifreeze as a protection against frost.
在冷卻系統里加防凍劑以防止霜凍.
7. The towering pine and cypress trees defy frost and snow.
松柏參天傲霜雪.
