rainfall
n. 降雨；降雨量
复数 rainfalls
例句
There has been below average rainfall this month.
这个月的降雨低于平均降雨量。
《牛津词典》
There have been four years of below average rainfall.
已经有4年降雨量低于平均水平了。
《柯林斯英汉双解大词典》
Record levels of rainfall fell over the southeast of the country.
该国东南部降下了最高纪录的雨量。
