It's actually because you're inhaling dangerous substances into your body.

这实际上是因为你把危险的物质吸入了你的身体。

Animals, dangerous substances such as pesticide and workers can all contribute to contamination.

像是动物、危险物质，如杀虫剂和工人都会造成污染。

" This law will eliminate easy access to this dangerous substance for our youth."

“这项法律将使我们的年轻人无法轻易接触到这种危险物质。”

But while the medical potential of RTX is intriguing, it's a very dangerous substance.

但是尽管 RTX 的医疗潜力是很有趣的，但它还是一种非常危险的物质。

When the Wall Street Journal asked Americans to rank dangerous substances, sugar beat out marijuana.

当华尔街日报要求美国人对危险物质进行排名时，糖击败了大麻。

Blue blood from horseshoe crabs is used by researchers to test for dangerous substances in vaccines, medicines and medical devices.

研究人员使用马蹄蟹的蓝血来测试疫苗、药品和医疗器械中的危险物质。

Poison, poison is a dangerous substance that causes illness or death.

毒药 毒药是一种会导致疾病或死亡的危险物质。

The World Health Organization has warned that several cough medicines targeted at children in the Gambia contained dangerous substances and should be withdrawn immediately.

世界卫生组织警告称，冈比亚一些针对儿童的止咳药含有危险物质，应立即停用。

And we've got to begin early in the first, second and third grade before our youngsters begin to experiment with these very, very dangerous substances.

我们要早些起步，在一二三年级的孩子身上进行这项工作，要早于他们有机会接触到毒品这种危险物品之前。

It didn't also help that the British introduced dangerous substances to them, like alcohol and opium, that they had no history of experience or restraint with.

英国人向他们介绍了一些危险物质，比如酒精和鸦片，这些东西他们从来没有接触过，也没有受到过使用限制，这也加剧了伤害。

It is a very dangerous substance to handle, and if you want to cut it you must hold it under cold water while you are doing so.

这是一种非常危险的物质, 想要切割磷, 也必须要在冷水中进行操作。

The entrance to this organ is guarded by the blood-brain barrier, which separates blood from the nervous system to keep potentially dangerous substances out.

这个器官的入口受到血脑屏障的保护，血脑屏障将血液与神经系统隔开，将潜在的危险物质拒之门外。

For example, President Joe Biden signed a law last August that offered more health services to former soldiers who may have been in contact with dangerous substances in smoke.

例如，美国总统乔·拜登去年8月签署了一项法律，为可能接触过烟雾中的危险物质的退役士兵提供更多的医疗服务。

He answered all my questions in great detail -but then when I asked how much access he had to dangerous substances he wouldn't tell me exactly what his work involved.

他详细的回答了我的每一个问题，但是当我在之后问他涉及的危险物质有多少时，他却不告诉我他的工作到底是什么了。