That china has a large populationt than any other country is know to all.想问下前面的THAT是怎么回事
问题描述：
That china has a large populationt than any other country is know to all.想问下前面的THAT是怎么回事
答
是引导主语从句的引导词,从句部分是 china has a large populationt than any other country
主句就是That is known to all