◎ but可以用作關系代詞,引導定語從句作主語,常用于no…but結構中,意為“沒有不……的”,相當于no…who…not,表示強調的肯定意義。
There is no one but likes the film. 沒有人不喜歡那部電影。(=There is no one who does not like the film.)
No man in the world but has weak points. 人人皆有弱點。(=There is no man in the world who does not have weak points.)
There was no man but respected her. 沒有人不尊敬她。