But this year, precipitation has been particularly heavy.

但今年的降雨量特别。

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

这场干旱由降雨量低以及用水不规范造成。

A continuous heavy downpour has meant many of the state's 41 rivers are overflowing.

持续的强降雨已经使得州内41条河流中多条河水溢出。

You'd think rain would be good for California in the middle of its historic drought, but so much rain in so little time on such dry ground can bring serious flooding.

你可能认为降雨对加福尼中部地区的干旱而言无疑是天降甘露，但是短时间内干旱地区如此多的降雨很容易造成严重洪水。

Agata Imielska, from Australian Bureau of Meteorology, says the rains have been unprecedented.

澳气象局的佳塔·依米示，这次降雨是前所未有的。

The city had tripled its normal rainfall.

该市的降雨量翻了三倍。

That information enables researchers to determine rainfall patterns over the millennia.

这些信息使研究人员能够确定几千年来的降雨模式。

These record downpours are creating historic floods and mudslides.

空前的降雨量造成了历史性的洪水和泥石流。

Well, I understand that much of the rain has dissipated now.

我知道现在降雨基本已经停止。

It fell as rain a thousand miles away in the highlands of Angola and has taken nearly five months to reach here.

这些水来自数千英里外安哥拉高地的降雨，奔流了将近5个月才到达这里。

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

德州许多地区降雨量已达到饱和状态。

So it rains a lot less in Seattle.

因此，西雅图的降雨相对少很多。

So you can have normal rain, heavy rain, and then torrential rain.

所以你可以有一般降雨、雨，然后豪雨。

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.

尔贝托并不是唯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降雨量超过9英寸。

How does making it rain in Idaho affect what happens a state over?

爱达荷州的降雨如何影响一个州的发展呢？

Over the course of this week, forecasters expect up to 20 inches of more rain.

本周内，天气预报员预计还会有多达20英寸的降雨。

The cyclone winds were bad enough but the flooding is much worse say aid officials creating what they're calling an inland ocean and the threat will increase as more rains set in.

飓风已经够糟糕的了，但是洪水更糟糕，救援官员说，形成了他们所说的内陆海，随着更多的降雨到来，威胁将会增加。

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

如果降雨量很小，水位会下降。

Forecasters said 24 to 30 inches of rain was possible in some parts of the Bahamas and that's in addition to flooding from the storm surge, the rise in sea water pushed ashore by hurricane winds.

气象预报员说，巴哈马部分地区可能会有24到30英寸的降雨，这还不包括风暴潮引发的洪水，被飓风推上岸的上升的海平面。

Authorities have tried everything from seeding rain clouds to hosing down streets to control the pollution crisis have so far failed to clear the air.

为了控制空气污染危机，当局已经尝试了各种方法，从人工降雨到冲洗街道，到目前为止都未能消除空气污染。