beat up onsb
—phrasal verbwithbeatverbuk/biːt/us/biːt/beat|beatenorUSalsobeat
USinformaltohurtsomeone byhittingorkickingthem manytimes
揍，痛打
Kids used tobeatup on him afterschool.以前那些孩子放学后常常打他。
tocriticizesomeoneunfairly
（不公正地）批评，抨击
She didn’t like beingbeatenup on by thepress.在媒体上受到不公正的抨击，她很不高兴。