a few不可数，a few修饰可数名词复数，表示肯定、少许、少数。little，a little后面接不可数名词。a few，a little表示肯定，意思是有一些、有一点。few，little表示否定，意思是没有一些、没有一点。

a few用法例句

1.I made a few phone calls.

我打了几个电话。

2.I have a few, but not many.

我有几个，可是不多。

3.I stayed there a few days longer.

我在那里多住了几天。

4.A few books have been lost from the library.

图书馆丢失了几本书。

5.We had a few drinks afterwards.

后来我们喝了几杯。

few例句

1.Few people understand the difference.

很少有人了解这个差别。

2.There seem to be fewer tourists around this year.

今年来访的旅游者似乎少了。

3.Very few students learn Latin now.

现在学拉丁语的学生少得很。

4.We've had a few replies.

我们已得到了一些答复。

5.I need a few things from the store.

我需要从商店买些东西。