还有另一件事要加进来，这就是：当然我们知道中国是幅员辽阔，人口众多，在人口统计和地理上都是首屈一指，它有13亿人口。

And there’s one other thing to add to this, and that is this. Of course we know China’s big, huge demographicallyand geographically, with a population of 1.3 billion people.

youdao

还有另一件事要加进来，这就是：当然我们知道中国是幅员辽阔，人口众多，在人口统计和地理上都是首屈一指，它有13亿人口。

And there's one other thing to add to this, and that is this. Of course we know China's big, huge demographically and geographically, with a population of 1.3 billion people.

youdao

显然，地理位置和人口数量不同也是造成各国统计结果不同的原因。

Obviously, some of the differences between countries are caused by differences in their areas and populations.

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