keep on doing sth 继续作某事 ; 继续做某事 ; 持续做某事 ; 不停地做
keep sb doing sth 使某人一直做某事 ; 让某人不停地做某事 ; 使某人持续做某事 ; 让某人做某事
keep sb from doing sth 阻止某人去做某事 ; 使某人不做某事
keep sbfrom doing sth 阻止某人做某事
keep slx busy doing sth 使某人忙于做某事
I keep on doing sth 我一直在做某事
Keep sth from doing 阻止 ; 阻止……做某事
keep someone doing sth 让某人一直做某事
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