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(duì)柑橘種植業(yè)是一場(chǎng)大災(zāi)難.

　　6. Fill the cooling system with antifreeze as a protection against frost.

　　在冷卻系統(tǒng)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.