当然，所有毒素都是达到了一定剂量的，就像少量的毒物并不会伤身，吃入或喝入的毒越多，危险就越大。

Of course all toxins have doses, and just as a tiny bit of poison won't necessarily harm you, the more you eat or drink, the greater the danger.

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有人说，药物和毒物的唯一区别就是它的剂量。

It has been said that the only difference between a drug and a poison is the dose.

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大剂量时是毒物，但在微量是它能使有机体生成能量使细胞发挥功能。

In large amounts it is toxic, but in trace amounts it enables organisms to produce enzymes that help cells to function.

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