backout

例句：

1. 1. He backed out of the deal at the last minute.
   他在最后一刻放弃了交易。
2. 2. The team backed out of the competition due to lack of resources.
   由于资源不足，团队退出了比赛。
3. 3.They backed out of the meeting because they had other commitments.
   他们因为其他承诺而退出了会议。