Yet some of the Keys are big enough to support large numbers of people.

VOA: special.2010.03.22

So 2 billion, 4 billion -- these are big numbers, but there's a lot of "billions of things" in the world, right?

所以20亿，40亿--这都是很大的数值，但是世界上有很多“数十亿的东西“，对不？

哈佛公开课 - 计算机科学课程节选

It's pretty arbitrary, but it's big relative to what the numbers were we were talking about before.

它是任意的，但它是跟数字是相关的,我们之前讲到过。

哈佛公开课 - 计算机科学课程节选

Remember, we saw that last time looking at the binary numbers. 2 to the n is a big number.

还记得吗，我们上次看过的二进制数,从2到n是一个很大的数。

麻省理工公开课 - 计算机科学及编程导论课程节选

So just to show you how big a difference it makes, let's run a couple of numbers.

让我们试试一组数字吧,如果n是1000的话。

麻省理工公开课 - 计算机科学及编程导论课程节选