bumper

中文： 缓冲器、保險杠

1. Someone or something that bumps.
2. A drinking vessel filled to the brim.
3. Anything large or successful. (colloquial)
4. Parts at the front and back of a vehicle which are meant to absorb the impact of a collision; fender.
5. Any mechanical device used to absorb an impact, soften a collision, or protect against impact. · The company sells screw-on rubber bumpers and feet.
6. A bouncer.
7. A side wall of a pool table.
8. A cylindrical object used (as a substitute for birds) to train dogs to retrieve.

复数 bumpers