keep after的用法和樣例：
例句
- Her mother had to keep after her to clean her bedroom.
她母親不得不反覆提醒她打掃寢室。 - The teacher had to keep after her pupils to do their homework neatly.
教師一再囑咐她的學生要把作業寫整齊。 - The police kept after the criminal until they seized him.
警察緊緊追趕罪犯，直到把他抓住。 - Sorry to keep after you, but can you tell me who's responsible for it?
對不起老纏著你，但是你能告訴我誰應對此負責嗎？
