They lack a large economy that can act as the nucleus of a regional grouping.

他们缺少一个大的经济体，可以作为一个地区组织的核心。

youdao

They lack a large economy that can act as the nucleus of a regional grouping.

他们缺少一个大的经济体，可以作为一个地区组织的核心。

youdao