扩大国内需求的英文：
The expansion of domestic demand

It's the expansion of a river.
这是河流的延伸部分。

This is nothing but the binomial expansion.
这不过是二项展开式。

They have an expansive grassy play area.
他们有一片广阔的游乐草地。

A servant, especially a domestic servant.
佣人仆人，尤指家仆

The pig is a domestic animal.
猪是一种家畜。

It was a scene of such domestic bliss.
这是一派天伦之乐的场景。

It is the demand, stupid.
傻瓜，答案是需求。

Demand exceeds supply. The supply is not adequate to the demand．
供不应求

I demand a recount.
我要求重算。