The channel is teeming with insects, fish and frogs, but the parents can barely keep up with their gangly offspring's appetite.

水渠里到处都昆虫、鱼和青蛙，父母们几乎无法满足它们瘦长后代的胃口。

So they built the drainage channels too close to sea level, and now sea levels are rising, they're more or less useless.

所以他们建造的排水水渠离海平面太近，现在海平面在上升，他们或多或少地失去作用。

One of the villagers shows us where to find there overflow channel.

一位村民告诉们哪里可以找到排水渠。

No. Really they just need to find the money for something to replace the drainage channels, in order to protect against flooding now.

的。他们现在只找资本来代替抽水水渠，以防洪涝灾害。

The canals take water to the rice fields.

水渠把水送到稻田里。

Aqueducts were constructed, which increased the public's access to water, helped improve public health, and paved the way for Rome's famed bathhouses.

罗马修建引水渠，为公众获取水源提供便利，有助于改善公共卫生，并为修建著名的罗马浴场做好准备。

But how am I going to get these people to build this ditch for me?

怎么能让这些人为挖这个水渠呢？

We've had a delightful correspondence about the Delaware Aqueduct.

们曾就特拉华水渠的问题有过愉快的交流。

The aqueduct is completed, and it is good.

引水渠已经完工 非常不错。

In an effort to add on to the system even further, there is also the Los Angeles aqueduct pulling water into the city from the Owens River in the eastern Sierra Nevada mountains.

为进一步扩大供水系统，洛杉矶还有一条引水渠，将内华达山脉东部的欧文斯河河水引入城市。

Plastic bottles, gas cans and other trash collect at the bottom and on the surface of the water, clogging this hydroelectric dam and keeping water from properly entering its channels.

塑料瓶、煤气罐和其他垃圾都堆积在水面和湖底，堵塞这个水电站的水坝，导致水流无法正常进入水渠。

The United Nations agency also found that boys and girls living near open water sources, such as ponds and irrigation ditches, are especially at risk.

该机构还发现住所周围有池塘或灌溉水渠等开放水域的儿童尤其危险。

Petra in Jordan was an ancient city which once had an aqueduct system delivering 40 million liters of water a day to 20,000 people.

佩特拉约旦古代的一个城市，曾经的水渠系统可以在一天内向 2 万人供应 4 亿公升的水。

Rising sea levels bring in more seawater. Irrigation canals turn salty. The problem is only going to get worse as temperatures rise.

海平面上升带来更多的海水。灌溉水渠变咸。随着气温的上升，这个问题只会变得更糟。

So it seems like the likely source of water pollution would be factories, runoff from farms, sewage from cities.

所以看来最可能的水污染源工厂，农场的水渠和城市的下水道。

His theory of Martian life became so complex that he made maps of cities and waterways on the planet.

他的关于火星生命的理论变得非常复杂，以至于他制作关于火星的城市和水渠的地图。

Government and business officials wanted to turn the Everglades into farmland and began building canals to drain the swamp.

政府和企业官员想将大沼泽地变成农田，于开凿水渠用以排干沼泽。

Roads have turned to rivers, and there have been dangerous muddy debris flows and burn scars and waterways.

道路已经变成河流，还有危险的泥石流、小溪水痕以及水渠。

The coin found in a ditch at a small Roman farmstead depicts the emperor Ulpius Cornelius Laelianus.

硬币在一处罗马农场附近的水渠中发现的，硬币上刻的莱利亚努斯国王。

It was blocked by the system of canals, embankments and wastewater drains built parallel to the river.

它被与河流平行的运河、堤防和污水排水渠系统所阻塞。