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.

　　天氣一會兒晴一會兒陰。

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

　　石灰水變得混濁了，可見在實驗中有二氧化碳生成了。

　　The day was dull, with a cloudy sky.

　　天氣陰暗多云。

　　We observed that it had turned cloudy.

　　我們注意到天已經變陰了。