The new guidelines recognize that most cases are not serious and go away within a few days.

VOA: special.2009.09.02

The teaching fellow for each lecture takes what we call scribe notes. These are posted within a few days online.

助教会把每节课讲义记录下来,这些东西几天内就会被发布到网上去。

哈佛公开课 - 计算机科学课程节选

Within a few days, sixty thousand railway workers were on strike.

VOA: special.2010.06.24