"It was very difficult to stay awake, extremely difficult," he said recalling his time on the overnight shift when he was usually the only one on duty.
想到曾经独自一个人值夜班时他说：“我觉得很难保持清醒，非常非常难。”
I usually leave home before my wife is awake so I will plant different small presents around the house and yard with a clue leading her from one gift to the next.
我常在妻子醒之前离开房间，把小礼物埋在庭院周围的各个地方，留下一点线索，引导着她发现一个又一个礼物。
If you stay calm and allow yourself to fall back to sleep naturally rather than lying there wondering why you're awake, you usually won't see any negative effects the next day.
半夜醒来，请别纠结自己为什么醒了，保持冷静，让自己自然地再睡过去，这样消极情绪就不用影响到你啦。
US researchers studied the brain activity of rats kept awake during the day - the time they would usually sleep.
美国的研究人员进行了一项实验，他们让一种习惯昼伏夜出的小老鼠白天不睡觉，以此来研究它们大脑的活动情况。
He is a nighthawk. His stereo often keeps me awake to midnight. And I'm usually awaked by a sudden noise.
他是一个夜猫子。他的立体声音响半夜的时候经常把我吵醒。我经常被突然的声响吵醒。
Usually I go jogging four times a week, and I always go in the morning because for me it's the best time to exercise because it keeps me awake all day, but at the moment I don't do any other exercise.
一般来说，一周里有四天我会慢跑，我通常会在早上慢跑，因为我认为早上是锻炼的最佳时间，可以让我一整天保持清醒，除了慢跑我没有做其他的运动。
Local anesthesia is used to make a small area of the body lose feeling. Usually, local anesthesia is for minor procedures, like fixing a tooth or closing a wound. The person remains fully awake.
局部麻醉的使用可以让身体小范围丧失感觉，通常，局部麻醉应用于较小的手术中，例如补牙或缝合伤口，患者在这时完全清醒。
I usually awake (wake) at six.
我通常六点钟醒来。
Usually they stayed awake three to four hours past sunset, with no light exposure other than the faint glow of a small fire that would keep animals away and provide a bit of warmth in the winter.
通常，他们在日落后三到四个小时里仍然清醒着，而且除了用以驱赶野生动物并在冬天聊以取暖的微弱火光之外，他们别无其他光源。
People who experience microsleeps usually remain unaware of them, instead believing themselves to have been awake the whole time, or to have temporarily lost focus.
经历过微睡眠状况的人通常都对此毫不察觉，他们以为自己一直处于清醒状态，或者认为自己只是偶尔走神了。
It can usually be demonstrated with the cat awake.
它通常被证明与猫醒了。
Right after being born, a newborn baby is usually wide awake, and not at all tired. That's just what Thomas is like too.
刚出生的婴儿一般都醒着，一点都不感到累。小汤姆斯就是这个样子的。
我通常六时醒来。
When ask him about what he talked when he's awake, he usually can't remember.
等他醒来后问起他说过的话，他总是不记得了。
The answer will usually be yes since you know you're awake (and it'll probably feel silly at first), but the repeated questioning will set your mind up to take the same actions in dreams.
因为你知道自己很清醒，所以答案往往是肯定的(刚开始很有可能有种愚钝的感觉)，但是，重复的疑问在梦中将会把你的思想转化成相同的动作。
The answer will usually be yes since you know you're awake (and it'll probably feel silly at first), but the repeated questioning will set your mind up to take the same actions in dreams.
因为你知道自己很清醒，所以答案往往是肯定的(刚开始很有可能有种愚钝的感觉)，但是，重复的疑问在梦中将会把你的思想转化成相同的动作。
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