将来某天，你会觉得奇怪：为什么你一双干净袜子都没有，为什么你最好的几个朋友可以做出一桌好菜，而你却不行！

One day, you will wonder why you have no clean socks, and why some of your best friends can cook a delicious meal but you cannot!

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然而，一些分析人士指出，最应当担心的是——美国是否会陷入一个“双底”衰退。

However, some analysts say the biggest worry in the US should be whether it will slide into a "double-dip" recession.

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双曲正弦、双曲余弦和双曲正切函数也会以常见或特殊形式出现在各种计算中。

The sinh, cosh, and tanh functions also all appear in various calculations in special and general relativity.

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If I do this and this but then I also put some other quotes inside, what's the computer potentially gonna think?

如果我双引号里面再套双引号,那电脑会怎么想呢？

哈佛公开课 - 计算机科学课程节选

Now, chlorine I have to do a little bit more heavy lifting here because chlorine starts as a diatomic molecule.

现在，对于氯,我将会做更多的说明,因为氯元素起初存在于双原子分子中。

麻省理工公开课 - 固态化学导论课程节选

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