They take in harmful gases from the air and produce oxygen for us to breathe.

它们从空气中吸收有害气体并产生氧气供我们呼吸。

12 Hours - Cigarettes contain a lot of known toxins including a harmful gas, carbon monoxide.

12小时-香烟含有大量已知毒素，包含一种有毒气体-一氧化碳。

Critics argue that drilling could release harmful greenhouse gases and have the potential to cause earthquakes.

批评者认为，钻探可能会释放有害的温室气体，并有可能引发地震。

Levels of harmful gases in the city are regularly higher than limits set by the European Union.

伦敦有害气体的指数通常高于欧盟规定的标准。

The transportation process emits harmful gases into the atmosphere that negatively affects the environment.

运输过程向大气排放有害气体， 对环境造成负面影响。

The scientists have found that levels of harmful gas, like carbon dioxide, are higher now than at any other time in history.

科学家们发现，现在二氧化碳等有害气体的含量比历史上任何时候都要高。

And as this food sits, it gradually rots and produces harmful methane gas, a leading contributor to global climate change.

随着这种食物的放置， 它会逐渐腐烂并产生有害的甲烷气体，这是导致全球气候变化的主要原因。

What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.

很多科学家相信，由于地球表面上长期有水存在，它使得地球得以把有害气体和酸性物质溶解在海洋里。

New power plants have been built to take harmful methane gas created by the decomposition of rubbish, and convert it into electricity.

新的发电厂已经建成，以吸收垃圾分解产生的有害甲烷气体，并将其转化为电能。

A generator engine, just like any other combustion engine, emits carbon monoxide, a harmful gas that can cause a splitting headache and make you pass out.

发动机，就像其他内燃机一样，会排放一氧化碳，这是一种有害气体，会导致剧烈的头痛并致人晕倒。

OK. So, here we are talking about net zero, which means limiting harmful gases, and the expression we are looking at is 'pour cold water on'.

好的。因此，我们在这里谈论的是净零，也就是限制有害气体，而我们正要学习的表达是“泼冷水”。

Thus, divers must swim to the surface very slowly—at a speed of 33 feet per minute with regular stops—so these harmful gases can escape their bodies.

因此，潜水员必须以非常缓慢的速度游回水面——约为每分钟33英尺的速度，并需要有规律地停下来，以便能够将这些有害气体排出体外。

The Environmental Protection Agency said it was monitoring the air in buildings and the surrounding area and had not detected any harmful gases in homes so far.

美国环境保护局表示，他们正在监测建筑物和周边地区的空气，到目前为止，还未在家庭中检测到任何有害气体。