睡到很晚，打盹儿时间长，或者晚上熬夜都说明你不喜欢规律睡眠，这会让你感觉时差颠倒。
Sleeping in really late, taking long naps, or ones that are late in the evening means you won't have an appetite for regular sleep and it will leave you feeling jet-lagged.
在世界各地，由于夏令时的开始或结束，人们改变了睡眠规律。
Around the world, people changed sleep patterns thanks to the start or end of daylight savings time.
拥有规律的睡眠。
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