He compounded various substances into an effective medicine.

他把不同的物质调配成特效药。

Hello! Organic substances recently discovered in the rain forest?

哈罗，最近才在雨林 发现的有机物质？

Recreational substances were phased out here.

这类消遣品在这儿已经不需要了。

But there are synthetic substances as well.

但也有合成物质。

Be careful when handling these explosive substances.

处理这些会爆炸的物质时要小心。

Oil and water are two very different substances.

油和水是两种截然不同的物质。

Scientists are working to identify this substance.

科学家们正在努力鉴别这种物质。

But there are at least two substances that are even worse.

但毒性比不上接下来要说的两种物质。

Tea is known to contain helpful substances known to reduce inflammation.

众所周知，茶含有消炎的有益物质。

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。

They can also release toxic substances that may sicken animals and human beings.

还会释放可能会让动物和人类患病的有毒物质。

From studies, we know that corals and other marine species contain chemical substances.

从研究中，我们知道珊瑚和其他海洋物种含有化学物质。

We face threats, frankly, from killer industries, tobacco and other unhealthy and addictive substances.

“坦白说，我们面临着来自止痛药行业、烟草以及其它不健康和成瘾物质的威胁。

That's when your body's immune system can fight off harmful substances to protect your body.

在这时，身体的免疫系统能对抗有害物质来保护身体。

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。

And the tags could sense the substances at levels of a few parts per million.

而且这些标签可以在每百万的极少物质中感应到问题物质。

I mean, it is the second most consumed substance on the planet after water.

我的意思是，它是仅次于水的第二大消耗物质。

They are not always held responsible for taking banned substances.

他们并不总是为服用违禁药物而负责。

The researchers also found a black, glossy substance that was harder to identify.

研究人员还发现了一种更难辨别的黑色光滑物质。

A brilliant scientist discovers a new miracle substance many times sweeter than sugar.

一位才华横溢的科学家发现了一种比糖甜很多倍的新神奇物质。