九小时的旅程中，可以有充足的时间在捷克睡眠，然后到达克拉科夫，去观赏波兰的皇家城堡，壮观的广场和氛围迷人的地下酒吧。
The nine-hour trip allows for plenty of sleeping off all that delicious Czech lager before arriving in Krakow ready for the Polish take on royal castles, imposing squares and atmospheric cellar bars.
每晚的睡眠时间在六到八小时的人们要比那些睡眠时间没有到达这样量的人们体重更不容易增加。
People who slept six to eight hours a night gained less weight than those who slept less than six or more than eight hours.
平均可减少的时间到达了12分钟，增加总睡眠时间的42分钟的睡眠。
On average it reduces the time it takes to get to sleep by 12 minutes and increases total sleep time by 42 minutes.
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