And Turkey acts as a buffer on Iran's border from the encroachment of Western NATO powers and to some extent Israel.

VOA: standard.2010.07.26

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