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.
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。