n.降雨；降雨量
A rainfall will settle the dust on the road. 一场雨使马路上的尘埃落定。
There was another rainfall early this morning. 今天清晨又下了一场雨。
This area has very low rainfall. 这个地区雨量稀少。
Changes in climate affected the amount of rainfall. 气候变化影响了降雨量。
Excessive rainfall had made the harvest impossible. 雨量过多，丰收已经不可能了。
