light rain 小雨；
fine rain 细雨；
rain shower 阵雨；
heavy rain 暴雨；
driving rain 大风雨；
torrential rain 倾盆大雨；
freezing rain 冻雨；
summer rain 夏雨；
rain season 雨季；
rain fall 雨量；
artificial rain人工降雨；
acid rain 酸雨
It is raining.
下雨了。
It'll rain.
就要下雨了。
It has stopped raining.
雨停了。
It rained the whole of last week, day in, day out.
上个星期天天下雨。
It started raining right after the kickoff of the soccer game.
足球赛一开球就开始下雨了。
If it rains, we will stay at home.
如果下雨，我们将待在家里。
After these dry days everyone hopes for rain.
干燥的天气之后，人人都希望下雨。
Supposing(that)it rains,can we play the match indoors?
要是下雨的话,我们在室内比赛行吗
It is raining. If it were not raining, we could go on an outing
现在正在下雨。假使不下雨的话，我们就可以出去郊游了
The ceaseless rain was bad for the crops
绵绵不断的雨对庄稼很有害。
The rain splattered against the french windows.
雨溅落在落地窗上。
Rain or snow usually comes from nimbus clouds
雨和雪通常都是来自雨云。
For ten hours it rained incessantly.
雨一直不停下了10个小时。