The sky is cloudy, and looks like rain.

　　天空陰沉沉的，像是要下雨。

　　The room became cloudy with a blue haze of smoke.

　　藍幽幽的煙使房間霧氣騰騰。

　　This is a cup of cloudy water.

　　這是一杯混濁的水。

　　The weather is now clear, now cloudy.

　　天氣一會(huì )兒晴一會(huì )兒陰。

　　The lime water has turned cloudy, therefore carbon dioxide has been produced during the experiment.

　　石灰水變得混濁了，可見(jiàn)在實(shí)驗中有二氧化碳生成了。