Work while you work,play while you play.工作时专心，娱乐时尽兴。 All work and no play makes Jack a dull boy.只干不玩，会成呆汉。 Don't burn the candle at both ends. 可过分消耗精力。 ◼ Work while you work, play while you play. 工作时专心，娱乐时尽兴。 ◼ All work and no play makes Jack a dull boy. 只干不玩，会成呆汉。 ◼ Don’t burn the candle at both ends. 不 可过分消耗精力