back down
放弃, 让步
例句与用法：
After being shown conclusive evidence, the other side had to back down.
出示确凿的证据之后，对方不得不作出让步。
He hated to tuck his tail and back down now.
他讨厌此时夹着尾巴退回来。
After several hours’ negotiations, they finally backed down on their unreasonable demands.
经过几个小时的谈话后，他们终于放弃了不合理的要求。
He proved that he was right and his critics had to back down.
他证明了他是正确的，而那些非难他的人不得不收起他们那一套。
放弃; 让步; 打退堂鼓
He backed down after I saw his mistake.
在我拆穿他的大话后, 他让步了。
I see he has backed down from the position he took last week.
我注意到他放弃了上星期的立场。