Is it wrong for McDonald's to trick little kids into nagging their parents to buy the Happy Meals?

VOA: standard.2010.06.24

They can buy into it if they buy into a $15,000 point-of-sales system.

他们可以买入这些数据0,比如价值15000美元的销售网点系统。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

You don't have to buy into it; you just have to know it, okay.

你们不必想念它，但是你们必须知道它，好吧。

耶鲁公开课 - 旧约导论课程节选

But then, they would also need to buy into an entire service army of people to figure out how to use it.

但之后他们也需要买入整个,服务团队的人来研究怎么用它。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

The other is I take a mortgage, I buy a house, I pay it off, I go into a heavy indebtedness but with a good rational reason and it all works out in the end.

另一种情况是，我分期贷款买了一套房子，我还清了贷款，却债台高筑,这样，于情于理都能说通,而且，最终无事一身轻。

斯坦福公开课 - 经济学课程节选

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