Every organ and other structure within the human body from bones to muscles depend upon a plentiful supply of water to function appropriately.

从骨骼到肌肉，人体身上每一处器官和其它的组织都要依赖于大量补给的水才能适当地活动。

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And proteins control the structure and function of all the cells that make up your body.

蛋白质控制组成机体的所有细胞的结构与功能。

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Glucosamine is necessary in the body for the structure and function of the articular cartilage.

为关节软骨组织的结构和功能，氨基葡萄糖是必要的。

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But the Food and Drug Administration does not prospectively review food claims because American law says that foods are allowed to affect the "structure and function" of the body, so long as they do not actually claim to treat disease.

FORBES: Magazine Article

In general, an eyelash-growth claim "would indicate an intent to affect the structure or function of the body, and thus, cause the product to be a drug, " which would require FDA approval, says Shelly Burgess, a spokeswoman.

WSJ: Aches & Claims: Another Wand for When Mascara Isn't Enough