这是由于人体对肾脏的要求随着年龄的不同也有所变化。

This is because the demands on a kidney vary with age.

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它也可能是由于人体不能利用制造的胰岛素引起。

It also can develop when the body is not able to use the insulin that is made.

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这项心理研究显示由于人体基本的生理特性，红色能使女性显得更有魅力。

This psychological research shows that red may make women more appealing to date because of basic physiological properties.

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