He compounded various substances into an effective medicine.

他把不同的物质调配成特效药。

Scientists are working to identify this substance.

科学家们正在努力鉴别这种物质。

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。

Yeah, just like any other radioactive substance.

没错 和其他放射性物质一样。

Hello! Organic substances recently discovered in the rain forest?

哈罗，最近才在雨林 发现的有机物质？

Sugar, as you know, is a sweet substance.

如你所知，糖是一种甜的物质。

Oil and water are two very different substances.

油和水是两种截然不同的物质。

Recreational substances were phased out here.

这类消遣品在这儿已经不需要了。

So how could such an essential substance hurt us?

那么，如此重要的物质怎么会伤害我们呢？

Harry lifted the silvery substance into it with his wand.

他用魔杖把那些银色的物质收集到里面。

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。

Lime is a powdery substance that comes from heating limestone.

石灰是加热石灰石产生的粉末状物质。

He had to give you some substance to the ice cream.

这样的话冰淇淋里就必须要添加一些其他的东西。

Remember the fable of the dog that dropped the substance, in catching at the shadow.

记得把寓言的狗捡了芝麻丢了西瓜。”

Our guidelines around substance abuse or substance use is very different.

我们对药物滥用或药物使用的指导方针非常不同。

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。

Chlorophyll is also the substance that gives plants its green colour.

叶绿素也是使植物呈现绿色的物质。

It stores the substance in its wood.

它将这种物质储存在枝干中。