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

They didn't word it that--they put it in the present tense: home prices double every ten years.

他们不是这样写的...他们用的是现在时,房价每十年就会翻一番

耶鲁公开课 - 金融市场课程节选

Is there a key word like int or char double with which you can represent a 1024-bit value?

有一个像int，char，double这样的关键字,用来表示一个1024位大小的数值呢？

哈佛公开课 - 计算机科学课程节选