你应该对你通常不需要写入内容的磁盘进行写保护。

You should write-protect all disks that you do not usually need to write to.

《柯林斯英汉双解大词典》

这段旅程通常需要多长时间？

How long does the journey usually take?

《牛津词典》

兑现支票通常需要三个工作日。

Cheques usually take three working days to clear.

《牛津词典》

Usually with just two, maybe three characters, a character that you can't really see as well on the screen, otherwise, so a new line character.

通常需要两到三个字符，这些字符你们在屏幕上是,看不到的，这个是换行字符。

哈佛公开课 - 计算机科学课程节选

In Mesopotamia they usually didn't need to because the richness of the soil and so on.

在美索不达米亚,由于土壤肥沃及其他因素,通常是不需要施肥的

耶鲁公开课 - 古希腊历史简介课程节选

Programmers often write TODO with no space, all caps like this which means "I have to do something here."

程序员通常写TODO不使用空格，像这样的大写意思是“这里我需要做些事情“

哈佛公开课 - 计算机科学课程节选