There are no roads, no cars, no sewage system.

没有道路，没有汽车，没有污水处理系统。

And how are samples affected by different sewage systems?

不同的污水处理系统对样本有何影响？

Sewage systems allowed us to develop into multi-million person cities.

下水道排污系统使得 数百万人口的城市得以出现。

Most of this pollution comes from wastewater in sewage systems, researchers say.

研究人员表示，大多数污染物来自下水道系统的废水。

They set cameras on floatation devices, which they put into the sewage system.

他们将摄像头安装在漂浮设备上，然后将其放入污水处理系统中。

The most pressing issue currently is a shortage of clean water supply and a broken-down sewage system.

目前，最紧迫的问题就是清洁水供应短缺、污水处理系统出现故障。

Schools, hospitals, factories, all part of the rebel. And the sewage system is totally destroyed.

学校，医院，工厂全部沦为叛军占领区域。而且整个污水系统被完全摧毁。

In places without access to large sewage systems, bacteria-laden human waste passes into septic tanks.

在没有大型污水系统接口的地方，负载细菌的人类粪便被冲进化粪池中。

Unlike cholera, which was eliminated in London by re-designing the sewage system in the 1850s, TB was airborne.

它与霍乱不同，19世纪50年代，伦敦通过重新设计污水处理系统消除了霍乱，而肺结核是通过空气传播的。

Nutrient-rich waste from our sewage systems and industrial processes often end up in lakes, estuaries and coastal waters.

我们污水系统和工业制造过程会产生一些富含营养的废弃物，它们通常最后会进入湖泊、河口，及沿岸水域。

The report said building more sewage systems was not enough to solve the problems of infection and deaths.

报告认为，建造更多的排污系统对解决感染及死亡问题来说远远不够。

Traces of virus in our sewage systems can often be detected before a surge in clinical COVID cases.

在新冠临床病例激增前，我们通常可以探测到下水道系统中的病毒痕迹。

He said residents are without water, power and a working sewage system, as dead bodies decompose in apartment buildings.

他说，尸体在公寓楼里腐烂，居民们没有水、电和正常运行的下水道系统。

Only a third of West Bankers have access to a sewage system; some 10% manage without a water supply.

仅有三分之一的西岸居民有可用的下水道系统，大约10%的人在没有供水的情况下勉强生活。

In cities and towns with sewage systems, this wastewater combines in underground pipes, which actually aren't filled with feces.

在有污水系统的城镇里，这些废水在地下管道中汇合，而地下管道实际上并没有装满粪便。

When washed off, these microplastics enter the sewage system.

当被冲走时，这些微塑料进入污水系统。

Even sewage systems became more complex. Cities  continued to grow beyond anyone's imagination.

甚至污水处理系统也变得更加复杂。城市继续发展超出任何人的想象。

The city installed a new sewage system to improve sanitation.

污水：该市安装了新的污水系统以改善卫生状况。

When it rains, the only overflow for the city's Victorian sewage system is the Thames.

下雨时，泰晤士河是该市维多利亚污水系统的唯一溢流源。

He got the idea to build a sewage system when he brought a group of tourists to a nearby waterfall in 2007.

2007年，当他带着一群游客来到附近的一个瀑布时，他萌生了建造污水处理系统的想法。