We pump the ground water up onto the hills.

我们把下水抽到山上。

Southern California still has low ground water levels.

南加利福尼亚下水位仍然很低。

And when ground water is removed, the earth above it sinks.

当下水被抽出后，它上面就会下降。

These breaks permit gases and ground water to pass through the rock.

这些裂缝允许气体和下水通过岩石。

" There's not a lot of ground water. The dams are still empty, basically" .

" 下水不多。大坝基本上还是空。"

These materials can enter the ground water and make their way into the ocean.

这些物质可以进入下水源中，然后进入海洋。

Experts say nearby construction projects and the removal of ground water contributed to the problem.

专家称，是附近建筑项目和清除下水造成。

Too much ground water has been removed while heavy buildings have been built in many places.

市靠近大海，有13条污染严重河流流经市。在许多方建造重型建筑时，大量下水被抽走。

A main cause is the amount of ground water being drawn out from under the city.

其中一个主要原因是市下面大量下水被抽出。

The main cause is that too much of the city's ground water has been pumped out.

主要原因是太多市下水被抽走了。

Jakarta has been slowly sinking. Large amounts of ground water have been extracted from under the city.

雅加达正在缓缓下沉。很大一部分下水都抽出来了。

Perhaps most interesting, and most easily measured, is a chemical change in ground water before a quake.

也许最有趣、也最容易测量，是震前下水发生化学变化。

The World Wildlife Fund says there are thousands of wells in the area taking ground water without permission.

世界野生动物基金会表示，区有数千口井未经许可抽取下水。

It's used for everything from bathing to industry and when ground water's removed the earth above it sinks.

从洗澡到工业生产，下水被抽走，上面就会下沉。

Jakarta is sinking. The main cause is that too much of the city's ground water has been pumped out.

因为雅加达在不断下沉。主要原因是，市下水被过度抽取。

In Oman's mountain caves, rain and ground water form pools.

在阿曼山洞里，雨水和下水形成水池。

Their facility polluted the ground water.

他们设备污染了下水。

And the small amount of ground water is not the only limiting factor.

少量下水并不是唯一限制因素。

Jakarta has been slowly sinking. A main cause is the amount of ground water being drawn out from under the city.

雅加达一直在缓慢下沉。其中一个主因是市下面大量下水从被抽出。

First, it's a desert area, so there's only a small volume of ground water available.

首先，这里是沙漠区，因此可用下水量很少。