beat up on
1.PHRASAL VERB 短语动词殴打；痛打 If someone beats up on a person or beats on them, they hit or kick the person many times.
【语法信息】：V P P n
【语法信息】：Also V P n
【语域标签】：AM 美
He beat up on my brother's kid one time.
他有一次殴打了我哥的孩子。
2.PHRASAL VERB 短语动词威胁；恐吓；粗暴对待 If someone beats up on another person, they threaten them or treat them unkindly.
【语法信息】：V P P n
【语域标签】：AM 美
【STYLE标签】：INFORMAL 非正式
She had to beat up on every customer just to get the bills paid.
她不得不威胁每一位顾客，好让他们付款。
