云下的

A cloud is a mass of vapor in the sky. 云是天空中的水汽團(tuán)。

A cloud is a condensation of water vapour. 云是由水蒸汽凝縮而成的。

I had to sub for the referee, who was sick. 裁判病了，我得代為裁判。

There are several kinds of cloud formations. 云層的構(gòu)成方式有好幾種。

The couple seemed to be on cloud nine. 那對(duì)夫婦看上去極其幸福。

The sun disappeared behind a cloud. 太陽(yáng)消失在一片云后面。