1PHRASAL VERB 移情别恋于;跟(新情人)私奔 If someone goes off with another person, they leave their husband, wife, or lover and have a relationship with that person. 移情别恋于;跟(新情人)私奔
I suppose Carolyn went off with some man she'd fallen in love with. [VERBPREP.PREP. noun]
我想卡罗琳与她爱上的那个男人私奔了。
2PHRASAL VERB 私自拿走 If someone goes off with something that belongs to another person, they leave and take it with them. 私自拿走
He's gone off with my passport. [VERBPREP.PREP. noun]