consta21

but放在nothing, everyone, anything等後面時，是當介系詞用，意思等同except（除外）

No one but myself knows what exactly happened.
＝除了我之外，沒有人知道到底發生了什麼事。

All the students but Richard joined the writing competition.
＝除了理查之外，所有的學生都參加了寫作比賽。

Who but a fool would think of such things?
＝只有呆瓜才會想到那種事吧？

Everyone but Marissa was excited about the vacation.
＝除了瑪莉莎外，每個人都對假期感到興奮。

There's been nothing but trouble since he came.
=他來了之後，除了麻煩外，什麼都沒有。


She does nothing but grumble all day long.
I refuse to discuss my medical history with anyone but Dr Grant.
There's no alternative but to scrap the whole plan and start again.