Vitamin D is also available in some foods, but as the world gets fatter, Vitamin D gets trapped in body fat.

VOA: standard.2010.05.28

So, after the second line for code here char * s1 gets the return value of get string this is what the state of our world looks like.

在第二行之后,这个代码char，*s1，等于GetSting的返回值,这就是它看起来的状态。

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