名詞子句

That own don

定義

名詞子句在複句中的功能相當於名詞。

例子

1、作主詞
That Tom likes swimming is known to everyone.
2、作受詞
I don't know why she is crying.
還有作動詞補語，作虛主詞it 的實主詞，還有放在介系詞之後的。