So it doesn't make sense to just use a number 'cause you wantthis character to collect something from here or here,or there.

仅仅使用一个数字到处去收集,是没有意义的，因为你想要这个东西,来收集这里的还有那儿的信息。

哈佛公开课 - 计算机科学课程节选

You have buildings that are numbered. Classes are numbered.

建筑物使用数字编号的，课程也是编号的。

求学热十足的学校 - SpeakingMax英语口语达人

There's a precise connection between the numbers you use and the numbers I use.

你使用的数字和我所使用的数字,有着确定的关系

耶鲁公开课 - 基础物理课程节选

It's a secret number so that if Julius Caesar scrambled his message with the key 13, well, then the recipient had better know what that number is or realistically, -- and this is why it's kind of hard to buy -- into some of these age old algorithms, -- what would an alternative approach be to figuring out Julius Caesar's messages to his generals if he didn't know that secret number was 13?

它是一个机密的数字，以至于,如果凯撒大帝使用密钥13加密了它的消息，然后接收者最好知道那个数字是什么,实际上--这就是为什么很难,破解这些古老的算法-,有什么变换方法使凯撒大帝的将军,可以解密凯撒大帝的消息，如果他不知道,那个机密数字是13呢？

哈佛公开课 - 计算机科学课程节选