rainfall
noun
ˈreɪnfɔːl
noun
1
the
amount
of
rain
that
falls
on
an
area
in
a
particular
period
of
time
雨量
We’ve
had
a
long
period
of
low
rainfall.
很长一段时间以来我们这里雨量稀少。
The
city
has
received
only
half
its
average
rainfall
of
four
inches.
本市目前的降雨只有往常四英寸平均雨量的一半。