“别有用心”，汉语成语，意思是心中另有算计，指言论或行动另有不可告人的企图。可以翻译为“have ulterior motives，have a hidden agenda”，与英文习语“have an axe to grind”意思相近，表示“to have a personal motivation or selfish reason for saying or doing something”。

例句：

他可以在公司里给你安排一份工作，但他是别有用心。他想和你父亲搞好关系。

He may offer you a post in his firm, but he has an axe to grind. He wants to stand well with your father.