Steam condenses into water when it cools.

蒸汽冷却时凝结为水。

Glass contracts as it cools.

玻璃遇冷收缩。

The lotion cools and refreshes the skin.

润肤液使皮肤凉爽清新。

Perspiration cools the skin in hot weather.

热天出汗可使皮肤降温。

He cools himself in front of an electric fan.

他在一个电扇前面吹凉。