So if I want to use a string as we'll call it which is a word or phrase generally, they always go between double quotes, David hence the quotes around David, and they are double quotes not single quotes intentionally.

当我们要表示单词啊，词组啊，句子啊等等这样的东西时,就会用到字符串，它们位于双引号之间，也就是这里双引号之间的，是双引号，不是单引号哦。

哈佛公开课 - 计算机科学课程节选

So I ended up getting into Berkeley, A&M, Purdue and... Oh, no, no, Boston University, not NYU.

而我最后可以去伯克利，德州农工学院，普渡大学和……哦，不，不，还有波士顿大学，不是纽约大学，

学习化学专业的原因 - SpeakingMax英语口语达人

It's not as though, oh, today is odd but maybe tomorrow it will be even.

并不是说，哦，今天它是奇数,也许明天就是偶数了。

耶鲁公开课 - 死亡课程节选

No, I guessed. -OK.

不是，我只是猜测，-哦。

普林斯顿公开课 - 人性课程节选

Oh, it's lovely, isn't it?

哦，它太可爱了，不是吗？

去泰特现代美术馆 - SpeakingMax英语口语达人

That's what it says, "REM," On the printout and about two years after I was doing this a student came up and said, "Professor Wright, it's really not "Rem."" Oh, it's not?" Okay.

封面上的确,就是印着,REM,两年之后,我开始放的时候,一个学生上来跟我说,莱特教授,这真的不是REM乐队,哦,不是吗,好吧

耶鲁公开课 - 聆听音乐课程节选