late 14c., "act of fastening with a bar," verbal noun from bar (v.). Meaning "exclusion" is from 1630s. As a preposition, "excepting, excluding," it is from late 15c. Schoolhouse prank of barring out the teacher was in use before 1728.
实用例句
1. He stepped in front of her, barring her way.
他走到她前面，挡住了她的去路。
来自柯林斯例句
2. Barring accidents, I believe they will succeed.
不出意外的话，我相信他们会成功的。
来自柯林斯例句
3. Barring accidents, we should arrive on time.
除非有意外情况，我们应可按时到达。
来自《权威词典》
4. We should finish by tonight, barring hold-ups.
倘若没有延误，我们应该在今晚完工。
来自《权威词典》
5. Barring strong headwinds, the plane will arrive on schedule.