1. all except除…外;都
All but three of the girls have passed the examination. 除了 3個女生,其餘的學生都通過了考試。
The shipwrecked people were rescued all but one. 船只失事,遇難者除一人以外全部得救。
2. almost;very nearly幾乎
He was all but bankrupt and couldn't help us. 他幾乎破產了,不能幫助我們。
The girl was all but run over by the car. 那女孩差點被那輛小汽車壓過去。