他还是很好玩的——虽然也许由于飞机时差的缘故，那双蓝眼睛没那么有神彩，但依然闪亮且非常彬彬有礼。
He was also playful — those blue eyes may have been jet-lagged, but they still managed to twinkle and exceedingly polite.
喷气飞机时差综合症是每个乘坐国际航班旅行的人在某个时候会碰到的问题。
The problem of Jet Lag is one every international traveler comes across at some time .
此外，一些人通过体外补充褪黑素改善睡眠，缓解飞机时差感、平衡季节性情绪失调。
In addition to their body's own melatonin, many people take melatonin supplements in an attempt to help them sleep, fight jet lag or balance out seasonal affective disorder.
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