keep on
 繼續,堅持


 keep on
      v : allow to remain in a place or position; "We cannot continue
          several servants any longer"; "She retains a lawyer";
          "The family's fortune waned and they could not keep their
          household staff"; "Our grant has run out and we cannot
          keep you on"; "We kept the work going as long as we
          could" [syn: retain, continue, keep, keep going]