- back off
 - 后退;软化;减轻;卸下
 
参考例子
           - 1.They request that you back off 100 meters to the south.
 - 他们要求你向南后退100米。
 
- 2.The military might back off at the last moment.
 - 到最后片刻,军方有可能打退堂鼓。
 
- 3.To clean or replace parts; shut off supply, loosen lock-nut and back off adjusting screw.
 - 如果要清洗或更换部件,关闭供应管道,松开锁紧螺母,退出调节螺丝。
 
英文解释
           - v.
 - 1.move backwards from a certain position
 - 2.remove oneself from an obligation
 
网络释义
               - back off
 - 让开!; 缓和,软化,减轻; 放弃(主张); 后退;
 
- back-off
 - 倒开; 拧松; 补偿,拆开,撤离; 铲背;
 
- back-off joint
 - 倒扣短节;
 
- back-off angle
 - 后角; 后让角,后角;
 
- Random back-off
 - 随机退避;