你如果希望改变自己的生活从而带来自己外观的改变，睡眠是关键一步。
If you want your lifestyle changes to reflect in the way you look, sleep is the key.
有些动物通过模仿它们生活场所的外观来隐藏自己。
Some animals hide by looking like the places where they live.
每一种都有自己独特的外观和天赋，以及在人类社会中的角色。
Each kind has its own look and talents and its own role within human society.
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