But the big bad wolf of these three is methanol.

阿斯巴甜中的有害物质是甲醇。

It's been almost 10 years since the Deepwater Horizon oil spill occurred and a new study suggests that invisible and toxic oil might have made the spill 30 percent bigger than it was originally estimated to be.

距Deepwater Horizon号石油钻机漏油事故已经过去了大约10年，新的研究表明，由于漏油无法直接观测及其有害物质的作用，现在的浮油可能要比原先估计的多30%。

If you neutralize something harmful, you take away its ability to cause harm.

" 如果你中和了有害物质，那你就消除了它造成伤害的能力。

" The education will provide participants the knowledge needed to identify indoor and outdoor pollutants, harmful chemicals in pesticides used at home, and how they can change or control them without exposing their children to the damaging effects" .

" 教育将为参与者提供，这用于辨室内室外污染物、家用农药中的有害化学物质，并教授他们如何改变或制有害物质，不使自己的孩子受到危害。"

Other types are less sensitive, and also have systems built into the structure of the cell that sweep out harmful compounds, such as penicillin.

而其他细菌则不敏感，而且内含有清除青霉素等有害物质的细胞。

The authority suspect they were exposed to a harmful substance, but it's not clear what.

官方怀疑他们接触了有害物质，但是不清楚具是什么。

The water is treated to remove harmful materials and stored in large tanks.

这水经过处理除去有害物质，并储存在大型水箱中。

This barrier interprets many putative drugs, including aminothiazoles, as harmful, and thus keeps them out.

可能有效的许多药物包括氨噻唑也被这个屏障当作有害物质阻挡在脑外。

Our skin fits tightly on our bodies. It holds in important things while keeping out harmful things. So, we can use a " skin" expression to describe very tight clothing. We can say that the outfit fits like a second skin.

我们的皮肤都是紧紧地贴在身上。在储存重要物质同时，它也阻挡着有害物质。所以我们可以用" skin" 来表示非常紧身的衣服。我们可以用第二身皮肤来形容衣服。

She is working on a card that will show if milk contains anything harmful.

她正在研究一种可测试牛奶是否含有任何有害物质的纸卡。

It's the other things that come along with the mold that could really hurt you.

而是随着霉菌进入内的那有害物质。

The Dracaena beat out the others, sucking up 94 percent of the offensive compound.

在这个问题上，龙血树是最厉害的，它吸收了94%的有害物质。

The water has already gone through a process designed to remove harmful materials.

这水已经经过了一个旨在去除有害物质的过程。

So many substances have been banned over many years and people still find them.

多年来，这么多有害物质都被禁止了，但人们仍然能找到它们。

After graduation, state officials rapped him for mishandling hazardous materials at a garage he'd opened.

毕业后，州政府官员斥责他在自己开的车库里违规处理有害物质。

This outer layer prevents water from escaping, and nasty things, like viruses, from getting inside.

这层外层可以防止水分逸出，也可以防止病毒等有害物质进入。

The heat and the chemicals used to separate metal from dirt or hazardous can make workers sick but for many who pan the streets for gold, a steady source of income is often more important than their health.

高温和用于将金属与污垢或有害物质分离的化学物质会让工人生病，但对许多在大街上淘金的人来说，稳定的收入来源往往比他们的健康更重要。

This is a small example to show the world that we still can do business and then we still produce the minimum harmful substance for the environment.

这是一个向世界所展示的小例子，我们仍然可以继续做生意，我们仍然生产着对环境产生最小影响的有害物质。

Vegans do tend to smoke less, drink less alcohol, and exercise more, and whether it's something bad in meat and dairy, or helpful in all the extra veggies, is yet to be determined.

素食者通常吸烟更少，喝酒更少，锻炼更多，而肉类和乳制品中是否存在有害物质，或是额外的蔬菜是否有益，还有待确定。

The plumes of smoke from the explosion carry the hazardous material into the air and water to which residents would be exposed.

爆炸产生的烟雾将有害物质带入空气和水中，居民将暴露在这物质中。