这个程序有三个部分，用% %符号隔开。

This program has three sections, separated by % % markers.

youdao

shell用空格字符隔开参数。

The shell separates arguments on space characters.

youdao

我们用栏杆将稻田与铁路隔开。

We railed off our paddyfield from the railroad.

youdao

And then sometimes we'll see you need to escape even more useful characters.

有时我们需要你,用一些有实际意义的字符与其他字符隔开。

哈佛公开课 - 计算机科学课程节选

Sometimes you need to escape a single quote as we'll see.

比如用单引号隔开。

哈佛公开课 - 计算机科学课程节选

The semicolon separates each of the parts.

每个部分用冒号隔开。

哈佛公开课 - 计算机科学课程节选