名詞 barring:

1. the act of excluding someone by a negative vote or veto
   同義詞：blackball

動詞 bar:

1. prevent from entering; keep out
   同義詞：bar, debar, exclude
2. render unsuitable for passage
   同義詞：barricade, block, blockade, stop, block off, block up, bar
3. expel, as if by official decree
   同義詞：banish, relegate, bar
4. secure with, or as if with, bars
   同義詞：bar

1. The whole class is here bar two that are ill.
   除兩人生病外，全班都到齊了。
2. Barring accidents, I'll be there.
   除非有意外事故，我會一定到場的。

bar.ring

prep.（介詞）
Apart from the occurrence of; excepting:
不包括…；除…之外：
例句：
Barring strong headwinds, the plane will arrive on schedule.
如果不是猛烈的頂頭風，飛機會準點到達的