In the middle to high latitudes rainfall has risen steadily over the last 20-30 years.(中高緯度地區的降雨量在過去的20到30年間穩步上升了。)

An annual rainfall of four inches is often used to define the limits of a desert.(年降雨量4英寸通常被用來界定沙漠的界限。)

A monsoon is a seasonal wind that can bring in a large amount of rainfall.(季風是一種季節性的風，它可以帶來大量的降雨。)

As the earth's climate changes and rainfall becomes even less predictable in some places, those answers will grow even more valuable.(隨著地球氣候的變化和降雨在某些地方變得更加難以預測，這些答案將變得更加有價值。)

The rainfall in Wuhan reached a historical peak this year.(今年武漢的降雨量達到歷史最高值。)

In these areas, rainfall per month exceeds that in the above definition, so other factors must contribute to savanna formation.(在這些地區，每個月的降雨量超過了上述定義中的量，所以一定有其他因素促成草原的形成。)

This spring, the town of Oso saw twice the usual rainfall.(今年春天，奧索鎮的降雨量是往年的兩倍。)

The impact of rainfall upon the surface water and groundwater resources of the desert is greatly influenced by landforms.(降雨對于沙漠地表水和地下水資源的影響很大程度上取決于地形。)

But during the past decade, the declining rainfall has allowed him to plant highly profitable crops.(過去的十年里降雨減少了，這讓他有機會種植一些高利潤的農作物。)

There has been below average rainfall this month.(這個月的降雨低于平均降雨量。)