动词后退

1. （为避免问题或冲突而）后退，避让，退缩
    If you back off, you move away in order to avoid problems or a fight.

    e.g. They backed off in horror.
           他们心怀恐惧地退缩了。

2. 放弃，收回（主张、要求、承诺等）
    If you back off from a claim, demand, or commitment that you made earlier, or if you back off it, you withdraw it.

    e.g. A spokesman says the president has backed off from his threat to boycott the conference...
           一位发言人表示总统已经收回了他将抵制这次会议的威胁。
    e.g. The union has publicly backed off that demand.
           工会已经公开撤回了那项要求。

3. 别插手；别干涉
    If you tell someone to back off, you are telling them to stop interfering.

    e.g. Back off, Mom, I'm old enough to make my own decisions!
           你别管，妈妈，我已经能够自己作决定了！

verb

1. move backwards from a certain position

    e.g. The bully had to back down

    Synonym: back upback down

2. remove oneself from an obligation

    e.g. He bowed out when he heard how much work was involved

    Synonym: chicken outpull outback downbow out