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。
When you saw the management coming out with guns, we felt so bad - because we are not like animals, where they have to use guns to keep us away.
当你看到那些老板们拿着枪对着我们，我们感觉非常不好，因为我们不是动物，他们不得不拿着枪让我们走开。
But now, angry villagers who are tired of elephants raiding their maize fields call on the animal protection unit to keep the animals away.
但现在，如果大象突袭玉米地，愤怒的村民必须通知动物保护协会的人来驱赶。
Experts say it is important to keep large farm animals away from water supplies with the use of a fence or barrier.
专家称，必须使用栅栏和篱笆使大型农田动物远离水源，这是非常重要的。
In general, wakefulness in animals is a survival function needed to feed and to keep predators away.
一般的，动物睡眠比较浅以保证远离捕食者。
Settlers usually keep these animals away with laser light.
定居者通常用激光使这些动物不能靠近。
Some animals can get further than these simple noises. For instance, a bird song is much more elaborate, for it tells other males to keep away, while at the same time inviting a female to come closer.
一些动物能发出比这些简单的声音更复杂的声音，例如，鸟儿的歌声就更复杂精细，因为它能告诉其它雄性鸟离开，同时邀请雌性鸟儿靠近。
Some animals can get further than these simple noises. For instance, a bird song is much more elaborate, for it tells other males to keep away, while at the same time inviting a female to come closer.
一些动物能发出比这些简单的声音更复杂的声音，例如，鸟儿的歌声就更复杂精细，因为它能告诉其它雄性鸟离开，同时邀请雌性鸟儿靠近。
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