“为某人买某物”的英语表达为：buy sth for sb/buy sb sth。例句：Lizzie bought herself a mountain bike.莉齐给自己买了一辆山地自行车。

buy sth for sb

例：He bought some flowers for his mother.

他给母亲买了一些花。

buy sb sth

例：Lizzie bought herself a mountain bike.

莉齐给自己买了一辆山地自行车。