睡眠专家们说如果你整天都感觉昏昏沉沉或疲惫不堪，很想要打个盹儿，或者是你躺下来五分钟内就去见了周公，你很可能已经处于睡眠剥夺的状态了。
Sleep experts say that if you feel groggy or tired during the day, feel the urge to nap, or if you fall asleep within five minutes of lying down, you could possibly be sleep-deprived.
他不吃东西，已超过了二十四个钟头，车子的颠簸已使他疲惫不堪，不过他并不觉得，好象他什么事都已感觉不到。
He had eaten nothing for four and twenty hours; he was worn out by the jolts of the cart, but he was not conscious of it. It seemed to him that he felt nothing.
如果你长期以来每天喝的水都不足八杯，那么你很有可能总是感觉到疲惫不堪。
If you consistently drink less than 8 cups of water a day, you may be sluggish all the time.
后来，它可能会更严重，运动员会感到疲惫不堪。有经验的耐力运动员对这种疲惫感非常熟悉，因为他们经常有这种感觉。
Later it may be more severe, and an athlete will be exhausted. The exhaustion is typical for experienced endurance athletes, who usually react in this way.
我觉得自己疲惫不堪了，这就是我的感觉。
这奇怪的感觉始终让人觉得疲惫不堪，他想。
It was an odd feeling to be so tired all the time, he thought.
这奇怪的感觉始终让人觉得疲惫不堪，他想。
It was an odd feeling to be so tired all the time, he thought.
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