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 doing 使某人一直做某事 ; 让某人保持做某事 ; 使某人做

Keep sb doing sb 继续做某事

keep sb from doing 阻止某人做某事 ; 使某人不能做某事 ; 使某人不做 ; 禁止某人做某事

keep sb from doing sth 阻止某人去做某事 ; 使某人不做某事

keep p sb doing 保持做某事

keep p sb from doing 阻止某人做某事