Because I know this program was saved by default into my current folder, my current directory, so dot slash means run the program called a.out that's right here in my current directory not in, like, a out my applications folder or somewhere else.

程序默认保存在,当前目录下的文件夹，/意味着运行这个名为“a，out“的文件,是我当前目录下的文件，而不是应用程序文件夹或其他别的地方的。

哈佛公开课 - 计算机科学课程节选

When I give a talk on Wall Street or even somewhere else in the world I sometimes ask my audience, "Did you take my course?"

当我在华尔街做讲座时,或者是世界上其他的地方,有时候我会问我的听众,你们有谁上过我的课吗

耶鲁公开课 - 金融市场课程节选

Put it somewhere else in the synagogue or the church.

把它放到犹太教堂或教会。

耶鲁公开课 - 新约课程节选

So that is a flag that tells the compiler that I want to use or link into my own program code that someone else wrote that lives somewhere else on the system whose moniker is CS50.

所以那是一个标记，用来告诉编译器我想使用,或连接我自己的程序代码到一个叫做CS50的系统中的程序,可能其他人在那个系统写了这些程序。

哈佛公开课 - 计算机科学课程节选