。

It is very difficult, but a few people understand it. 他雖難，但是有些人懂。

2. little 和 a little 之后接不可數名詞，其區別跟 few 和 a few 之間的區別相似：

Unfortunately, I had little money on me. 很不巧，我身上沒帶什么錢。

Fortunately, I had a little money on me. 幸好我身上帶著一點錢。