无名词形式。

few：

代词pron.很少人(或事物、地方)；

det./adj：

(与复数名词和复数动词连用)不多，很少;(与复数名词和复数动词连用)有些，几个。

相关介绍

only with a few people could she be her real self.

只有和几个人在一起时，她才能表现出真实的自我。

You're good for a few years yet.

你还可以活上几年。

Just a few years ago the picture was very different.

几年前的情况就大不相同。