back out片语动词KK [bæk aʊt] /bæk aʊt/发音片语动词1退出、反悔、打退堂鼓He backed out of the deal at the last minute.他在最后一刻退出了这笔交易。2食言、不守承诺You promised to help, so please don't back out now.你答应要帮忙,现在别食言。3倒车驶出、倒著开出可拆开She backed the car out of the narrow garage.她把车倒出了狭窄的车库。用这个字练口说→