a rip off的用法和样例：
- The 100 dollar jacket is such a rip off!
- The cell phone vendor is really a rip off since it never provides spare parts that it is supposed to.
- We all moan about Gosport ferry being a rip off but what would we do without it!!
- Although the price quotation for the dual-stage backups and online data recovery solution is not a rip off, the other charges afterwards will be a big time pullback.
- That's a rip off.
a rip off的相关资料：