The sky is cloudy, and looks like rain.

上海龙凤1314　　天空阴沉沉的，像是要下雨。

　　The room became cloudy with a blue haze of smoke.

上海龙凤1314　　蓝幽幽的'烟使房间雾气腾腾。

上海龙凤1314　　This is a cup of cloudy water.

上海龙凤1314　　这是一杯混浊的水。

上海龙凤1314　　The weather is now clear, now cloudy.

　　天气一会儿晴一会儿阴。

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

上海龙凤1314　　石灰水变得混浊了，可见在实验中有二氧化碳生成了。