If you create a directory (folder) on your computer for every client, you can keep all letters, documents and work for that client in one easy-to-find place, just like your paper file folder.

您可以在电脑上为每个客户建立一个单独的文件夹，这样就可以将该客户的信函、文档、工作记录全都放在该文件夹下，就像放在一个纸文件夹中一样，查找起来方便多了。

youdao

And "." signifies my current working directory, the folder that I am currently in.

，“表示的是我当前的工作目录，那个我当前所在的文件中。

哈佛公开课 - 计算机科学课程节选

When you type LS it just lists what's in your current folder, my current folder or my so-called home directory.

当你输入LS时，它会把你当前目录下的文件罗列出来，当前目录或者根目录。

哈佛公开课 - 计算机科学课程节选

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

It blows away the one in the main directory, the Documents folder, too.

FORBES: Windows 7 Experience