back off
后退, 放弃
例句与用法：
John was ready for a fight but he backed off at the last minute.
约翰要准备打一仗的，但到最后的时候却退缩了。
I don't like that car sitting on my tail. Wave him to back off.
我不喜欢那辆车紧靠在我的车尾，挥手示意他倒车(离远些)。
back offback offv.1.■后退
back off1.■[美国英语]后退，退回(一段距离)：They request that you back off 100 meters to the south.他们要求你向南后退100米。2.■(车)略向后移动，倒车，(车)退开：Do you mind backing off a bit, Sir, while we clear this wreck out of the way?先生，您能把车子往后移动一点吗?我们要将这辆坏车从路上清除。3.■(因恐惧等)向后退缩，后退，退让：The crowd backed off in terror as the police charged.警察冲上来时，人群因害怕而后退。4.■[美国俚语]放弃(要求、立场、主张、观点、辩论等)，让步，退却，退让，屈服[亦作 back down]:Now the time for action has arrived,it is too late to back off.行动的时刻已到，打退堂鼓已经来不及了。to back off from one's demands放弃原来的要求5.■[美国俚语]停止打扰(某人)；中断(讨论、辩论等)：She backed off from the debate when she saw her classmates were getting angry.她见她的同班同学要生气了，就中断了辩论。6.■[美国俚语]放慢速度：Hey, back off a little.喂，讲慢点。7.■[美国俚语]被撵出(酒吧等公共场所)，把…撵出：He was backed off the bar.他被撵出了酒吧间。
见:back: back off