go off with
phrasal verbgo off with somebody
- to leave your husband, wife, partner, etc. in order to have a relationship with somebody else
（抛弃原有伴侣等）另寻新欢与（另外的某人）相好；与某人私奔 - He went off with his best friend's wife.
他和最要好的朋友的妻子走了。
- He went off with his best friend's wife.
go off with something
- to take away from a place something that does not belong to you
携他人之物而去 - He went off with $10 000 of the company's money.
他卷走了公司 1 万美元。
- He went off with $10 000 of the company's money.