1、收回
... back of在…的后面;在…暗地里 back out of收回(信誉等) back up支持,援助;倒退 ...
2、背弃
... 授予合同 award of contract 背弃 back out of 视为 be deemed ...
3、食言
... hold on to 抓住，握住 back out of 食言，背信 broke away from 突然逃跑（离开） ...
4、退出
... award E5wC:d n. 奖,奖品; v. 授予,给予; vt. 授予 back out of 退出；撤出 backup 5bAk9Qp n. 后援; v. 把...做备份; n.[计算机] DOS命令 : 备份, 将文件从一个磁盘复制到另一个磁盘上 ...
back back out of收回
Back out of deal退出交易
back out of contract不履行合同;背弃合同义务
back out of sth你答应要去
Back out of an obligation推卸承担的义务
Back out of a fight退出格斗
back out of the contract不履行合同;背离合同义务
Back out of a danger避开危险
Pull out of back out中止