1 动词 “thought” 是 “think” 的过去式，意思是 “想，思考；觉得”。

I thought of you yesterday.

He thought that film was funny.

2 可数名词 “thought” 可以表示 “想法，主意”。

I've just had a thought! We should go to the beach.

There's a thought! Let's order pizza.

3 复数 “thoughts” 指 “看法，观念”。注意，在表达这个意思时，只能用复数形式 “thoughts”。

Here are my thoughts on how to run a business.

What are your thoughts on the right age to give a child a phone?

4 不可数名词 “thought” 表示 “考虑，思考”。

This a difficult problem. We need to give it some thought.

Sorry, this just doesn't work. It needs more thought.