dream用法和搭配详解如下：

1.作可数名词
> 意为“梦想”
I have a dream. 
我有一个梦想。

> 意为“梦，睡梦”
She had many dreams last night.
她昨晚做了很多梦。

2.作动词
> 意为“梦想” 
常见搭配：
1）dream of/about sth. 梦想某事
I never dream of/about happiness like this. 
我从来没梦想过这样的幸福。
2）dream of/about doing sth. 梦想做某事
(没有dream to do sth.的搭配)
She dreamed of becoming famous.
她梦想出名。

> 意为“梦见“ （睡觉时做梦）
常见搭配：
1）dream about
 He often dreams about his father.
他经常梦见他的爸爸。