So I hit control X. It's very unnecessarily arcanely saying save modified buffer, and then answering no will destroy changes.

敲入控制键X，它会很罗嗦地,问你是否保存所做的修改,如果回答为NO，就不保存修改过的部分。

哈佛公开课 - 计算机科学课程节选

You write the source code, the stuff that looks like this and then you save your file, and now you just have a text file.

比如你们写出像这样的源代码后,保存，你将会得到一个文本文件。

哈佛公开课 - 计算机科学课程节选

Animals that are altruistic even to the point of dying to help another, those genes will, under some circumstances, be preserved over the genes of people who are less caring.

有强烈利它主义的动物,甚至为其他动物牺牲自己，这些基因在某些情况下，就会被保存下来,而那些不关心他人的基因则不会。

耶鲁公开课 - 心理学导论课程节选

Okay, good. So in Gmail context most of you know, you cannot--you can delete things but most people just save or archive emails.

好，在Gmail中，大多数人都知道，你能删除邮件,但是大多数人会选择保存或者存档邮件。

哈佛公开课 - 计算机科学课程节选