Definition
to concede error or acknowledge defeat.
承认错误；认输；打退堂鼓
During the argument, he eventually chose to back down, acknowledging that he was wrong.
在争论中，他最终选择了让步，承认自己错了。
Although she was eager to enter the competition, she had to back down when she learned about her opponent's skills.
虽然她渴望参加比赛，但当她了解到对手的实力时，她不得不打退堂鼓。
He stood firm on the legal issue, but ultimately decided to back down at his lawyer's suggestion.
他在法律问题上立场坚定，但最终在律师的建议下决定让步。