后面跟集合名词或者可数名词复数，例如：

1、Several people came forward with information.有几个人自动站出来提供了信息。

2、It's just one of several projects on the drawing board.这只是正在筹划的几个项目中的一个。

3、Installation of the new system will take several days.新系统的安装需要几天时间。