He has so little money that he Can't afford the book.其中that為什麼不能省略?

He has so little money that he can't afford the book.

他的錢那麼少，所以買不起這本書。


P.S. 句子中的"that"不能省略喔! 「so...that...」是因此所以的意思。

so that-----adv, conj.=in such a way that.(formal);so much for that(informal);
He has little money in such a way that he can't afford the book
=so that