as as 中间加什么词,名词?副词?

问题描述:

as as 中间加什么词,名词?副词?

as + 形容词/副词 + as ...
as + 形容词+ a + 单数可数名词 + as
He is as strong as his brother.
He runs as fast as his brother.
He is as clever a student as his brother.