He was frustrated because he just lost a sale of a $2000 piece of glass that he had just made because the woman who wanted to pay him only had a credit card and he couldn't accept credit card.

他很沮丧,因为他刚刚失去一次将玻璃艺术品,以2000美元卖出的机会,有位女士想要买他的艺术品,但是只用信用卡付账,但他不愿意用信用卡交易。

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

I'm using my credit card, I run up a debt that I can't handle.

然后靠信用卡来维持生活，结果负债累累，而我根本还不起。

斯坦福公开课 - 经济学课程节选

But in society today, and we'll talk a bit about security topics -- and such throughout the course, for cryptography -- for encrypting things like your credit card information and bank accounts -- you don't use 32 bits, you don't use 64 bits, you generally use 1024 bits, 4,048 bits.

但在当今的社会上，我们将讨论一点安全方面的知识,贯穿整个课程，密码学-,加密一些像信用卡信息,银行账号之类的东西--你不能用32位，你也不能用64位，你通常要使用1024位，4048位。

哈佛公开课 - 计算机科学课程节选