Yeah, Classics Department can be a little paranoid.

为了防止污什么的。

To prevent your poisons from spreading, your government has sealed you all within this dome.

为了防止污物向外扩散，政府将你们封于此圆盖内。

We should all, therefore, do our part to stop polluting the air and help save the world.

因此，我们全都应该尽一己之力来防止污空气并拯救地球。

Because the government has taken some measures to prevent pollution and some flowers are grown on both sides.

因为政府已经采取了一些措施来防止污，还在两岸种了一些花。

" Quarantine." Enforced isolation to prevent contamination that could lead to disease, or, in some cases, death.

" 隔离" 。是为了防止污物引起疾病甚至死亡所采取的一种强制性隔绝手段。

This year, the theme is preventing plastic pollution and encouraging solutions for a healthy ocean.

今年世界海洋日的主题是防止塑料污并鼓励健康海洋的解决方案。

It also acknowledged recent reform progress made in the country, such as improving financial regulation, reducing overcapacity and combating pollution.

同时，这份报告中还谈及中国最近进行的改革，比如加强金融监管、减少过剩产能以及防止污。

Tanks and raceways can recirculate and filter water to prevent pollution.

水箱和水道可以对水进行再循环和过滤以防止污。

Wells are typically encased in steel and cement to prevent contaminants from leaking into groundwater.

井通常用钢和水泥包裹，以防止污物泄漏到地下水中。

He's one of many young people in Australia urging the public to take actions against plastic pollution.

尔连·艾克只是澳利亚国内众多敦促公众采取行动防止塑料污的年轻人的一。

They thought this would avoid allowing the disease to contaminate the air.

他们认为这样可以防止病毒污空气。

The best way to reduce the pollutants in our oceans is to keep them from entering the water system in the first place.

减少海洋污物的最好办法，首先就是防止污物进入水系统。

Recycled polyester uses less water and fewer chemicals and helps prevent plastic pollution.

再生聚酯使用更少的水和更少的化学品，有助于防止塑料污。

To prevent cross-contamination, all spacecraft, including Percy, are built under sterile conditions.

为了防止交叉污，包括珀西在内的所有航天器都是在无菌条件下建造的。

But preventing ocean plastic could be humanity's richest opportunity.

但防止海洋塑料污可能是人类最宝贵的机会。

I was astonished to see that some people in the big cities wear masks to protect their lungs from pollution.

让我很惊讶的是城市的有些人竟然戴着面具来防止空气污。

What if that money was spent improving our water systems, or better yet, preventing pollution to begin with?

如果把那些钱花在改善我们的供水系统如何呢？或更棒的，用来防止最初的水污这样如何呢？

It helped to increase support for laws that aimed to prevent air pollution and protect endangered animal species.

它有助于增加对旨在防止空气污和保护濒危动物物种的法律的支持。

But the mines themselves would also need to be cleaned up and monitored for decades to prevent them poisoning soils and water supplies.

但是这些煤矿本身也需要清理和监测几十年，以防止它们污土壤和水源。

In 1859, he ran a series of experiments with flasks that had specially curved necks, to keep the insides from being contaminated.

1859 年，他用有特殊弯曲颈部的烧瓶进行了一系列实验，以防止内部被污。