一个更现实可行的数字是1100万。

A more realistic figure is 11 million.

《柯林斯英汉双解大词典》

它的人口大约有750万，所以它比剑桥更大，也更繁华。

It has a population of about seven and a half million, so it is bigger and busier than Cambridge.

youdao

但其他消息来源称，它的年代更接近公元前3万年。

But other sources claimed it has been dated closer to 30,000 BC.

youdao

We want to do that in the simplest context, then we can make the example more and more complicated, but the phenomenon will be the same.

我们想举一个最简单的情景,随后我们可以再看一下更复杂的情况,但是万变不离其宗

耶鲁公开课 - 基础物理课程节选