OK. So, in the headline, 'worst case scenario' is a quote.

好。所以，在标题中，“最坏的情况”用了引号。

Her fingers sketched quotation marks around the name, and her tone dripped sarcasm.

她用指头在那个名字上画了个引号，并且用挖苦的语调说道。

The lives of our friends do sometimes look pretty exciting online, but let's put some quotation marks around the word " lives."

网络上朋友们的生活有时确实很精彩，但我们要给生活这个字加个引号。

The apostrophe shows that a letter, or more than one, is missing.

单引号表示缺少一个或多个字母。

Lauren has asked, oh she hasn't, asked she's put in quotes, I love a laminator.

劳伦，哦，她有，应该加上引号，我喜欢层压机。

And yes, I said 'great' with quotes because they're not great at all!

是的，我说“很好”时用了引号，因为它们一点都不好！

I hope my lack of fingers doesn't prevent the perception of my air quotes.

以上的话带引号，我手指比划，希望你可以看出来。

It is very possible that you might (underline) end up in what you intend as a space venture only to discover that you have " traveled" (in quotes) to another plane.But at first you will not know the difference.

极有可能，你们原本打算做个太空冒险，却发现自" " (引号)到了另一个 层面。但一开始你们不会知道其中的区别。

Now again, since we have quotations, this was taken from a direct source, so you see the English is a bit old and antiquated and a bit formal.

同样地，因为我们有引号，它是直接引用，所以你会发现这里的英语有点点古老陈旧，有些正式。

The beginning of the...the paragraph is talking about his theory of selective breeding, natural selection, and we notice that the transition word right before the quote says as Darwin himself admitted.

这段的开头谈论了他的选择性育种理论，自然选择，而且我们注意到引号前面的过渡词是因为达尔文自承认。

Quotation marks are used at the beginning and end of a sentence or phrase to show that it is being written exactly the way it was written or said originally.

引号用在句子或者是短语的开头和结尾，来表示是完全按照原文进行引用的。

And if they see a " stranger" —“stranger” in quotes: that's an individual from a neighboring social group—usually, if it's one by him or herself, they chase.

如果他们看到一个“陌生人”——加引号的“陌生人”：那是来自邻近社群的猩猩——通常，如果是他或她自单独一只，他们就会去追。

On the left of politics these days, " progress" comes with a pair of ironic quotation marks attached; on the right, " progressive" is a term of abuse.

目前，持左翼政治观点的人士认为，“进步”这个词的出现总要伴随着一对具有讽意味的引号；而持右翼政治观点的人士则认为，说什么“在进步”是一句骂人的话。

Now you see this phrase summer slide in quotes, because maybe it's not an official term, but it does refer to sliding, you know, sliding back.

现在你看到“summer slide” 这个词加了引号，可能它并非官方术语，但它确实指的是下滑，也就是倒退。

So, if we say 'the girls' boyfriends' and we're talking about several girls, we put the apostrophe after the 's' when we write it.

所以，如果我们说‘the girls' boyfriends’，我们的意思是好几个女孩子，在书写的时候，在‘s’后面加单引号。

And then it's almost like you make little speech marks and you say what you were thinking, what you were feeling rather than the adjective.

然后就像你做了小引号，你说出你在想什么，你在感觉什么，而不是形容词。

And by the way note that here becomes I'm using double quotes, I can easily use a single quote as an apostrophe, okay?

顺便说一下，这里变成了我使用双引号，我可以很容易地使用单引号作为撇号，好吗？

I say Empire in air quotes because the history of the Holy Roman Empire and the way it operated is incredibly complicated.

我说帝国是加了引号的，因为神圣罗马帝国的历史及其国家的运作方式非常复杂。

This is when we have those double quotation marks, don't miss a single word, and cite the person who made the statement.

这时，我们要使用双引号，不要漏掉任何一个词，并引证说出这句话的人。

I need you, they say, in prose that eschews speech marks, eliding talk with thought: check.

我需要你，他们说，散文体的语言不加引号，将谈话与思想融合在一起：有了。