Jack glanced at his watch, already set to Eastern Daylight Time. He discovered he'd slept for nearly thirty-five minutes - the longest interval of rest he'd had in the last fifteen hours.
杰克看了一眼已经调成东部夏令时的手表，发现自己睡了将近35分钟——这是他过去15个小时休息得最长的一段时间。
Interval training is built on short bursts of high intensity exercise offset by rest and recovery.
要劳逸结合，高强度的训练之后，能量在短期之内爆发，之后就需要通过休息和复原来进行能量的补偿。
Hours of rest may be divided into no more than two periods, one of which shall be at least six hours in length, and the interval between consecutive periods of rest shall not exceed 14 hours.
休息时间最多可分为两段，其中一段至少要有6小时，且相连的两段休息时间的间隔不得超过14小时。
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