What is the population of China?

中国的人口数是多少？

What is the total population of China?

中国的人口总计是多少？

While there certainly are many poor people in China, one should realize their middle class is bigger than the entire population of the U. S. China ain't what it used to be.

尽管中国还有很多的穷人，但中国的中产阶层的人数已经比我们美国全国的人口还要多。

What you may not know is that with a population of 7.4million, Xi 'an is one of the biggest regional cities in China.

你也许不知道，有着七百四十万人口的西安是中国最大的地区性城市之一。