Unit 134 休息一下

　　An important part of any successful exercise program is not exercising.Even the most devoted runners take at least a day off each week to avoid injuries and fatigue.

　　任何成功的运动计划中很重要的一点就是不运动。即使是最认真的跑者也要每星期至少休息一天以避免运动伤害和过度疲乏。