But this year, precipitation has been particularly heavy.

但今年的雨量特别大。

The drought was spurred by low rainfall and unregulated water use.

场干旱由雨量低以及用水规范造成。

That's hurricane force. Where seven footwaves have been reported on Lake Tahoe, where as much as 14 inches of rain has fallen near San Francisco.

风的等级。据报道太浩湖的巨浪达7英尺，而旧金山附近雨量达14英寸。

There was plentiful rain last year.

去年雨量充沛。

The city had tripled its normal rainfall.

该市的雨量翻了三倍。

The areas will see as much as 90 millimeters of precipitation.

局地雨量或将达到90毫米。

These record downpours are creating historic floods and mudslides.

空前的雨量造成了历史性的洪水和泥石流。

The grounds are already saturated in many parts of the state.

德州许多地区雨量已达到饱和状态。

In fact, Seattle ranks 44th among major US cities in average annual rainfall.

实际上，西雅图的年平均雨量在美国主要城市中排名第 44位。

Alberto isn't the only weather event that's causing trouble for the U.S. And in a short of period on Sunday, more than nine inches of rain fell on some parts of the eastern state of Maryland.

阿尔贝托并一一个给美国带来麻烦的天气事件，在周日的一段时间里，美国东部马里兰州的部分地区雨量超过9英寸。

If it rains very little, the water table will drop.

如果雨量很小，水位会下。

Indian officials say some parts of Kerala received more than twice the amount of rainfall that they usually do, and that's caused the worst flooding the state has seen in almost a century.

印度官员们表示，喀拉拉邦部分地区雨量比往年的2倍还多，引发了该邦近一个世纪以来最严重的洪灾。

It's cancelled or delayed hundreds of flights, and it's dropped more than six inches of rain on some regions in a very short amount of time.

还导致数百架航班延误或取消，并且在很短的时间内，一些地区的雨量超过了六英寸。

Between 10 and 35 inches were possible in the region.

一地区雨量可能达到10到35英寸。

The small amount of rain last year affected the growth of crops.

去年雨量少, 影响庄稼的生长。

Others say its area naturally fluctuates depending on the amount of rainfall at its borders and that a drought in the late 20th century only made it look like the Sahara had grown.

另一些人则认为，撒哈拉沙漠面积的自然波动取决于其边界的雨量，而20世纪末的一场干旱会让它看起来像撒哈拉沙漠在扩张。

This year, we didn't receive even five percent of the rain we normally get.

今年的雨量只有正常情况下的5%。

And when the rain comes down, and it comes down as strong for a sustain amount, that's when you can get the slides, because an ashy slurry mess.

在雨时，如果雨量足够大，就会出现滑坡，由雨所导致的灰泥浆造成的。

Now that there is little rainfall too.

现在雨量也少了。

Globally, rainfall during major storms is expected to increase 20% by 2100.

到2100年，全球主要风暴期间的雨量预计将增加20%。