They typically turn in well after midnight, then get up just a few hours later and barrel through the day without needing to take naps or load up on caffeine.
他们通常午夜过后才上床睡觉，几个钟头之后就起床干活，无需小憩一下或靠咖啡因提神就能度过整整一天。
Rather than try to force yourself into enduring hours upon hours of dedication, work in short sprints of about 20-30 minutes, then get up and have a stretch or take a short walk.
不是强迫自己熬几个小时的时间而已，而是要在短时间内集中精力，高度专注约20 - 30分钟的时间，然后起身走动放松下散散步。
We pitch camp at the foot of the wall, sleep a few hours, then get up at 2 a. m. for takeoff.
我们在陡壁脚下扎营，小休了数小时后，在凌晨两点起身，出发。
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