它们白色的皮毛，在雪中起保护色的作用。
你不是真正的快乐，你的笑是你穿的保护色。
You are not really happy, your smile is your protective color.
你不是真正的快乐，你的快乐只是你的保护色。
You are not really happy, your happiness is just your camouflage.
你不是真正的快乐，你的快乐只是你的保护色。
You are not reallyhappy, your happiness is just your camouflage.
我不是真正的快乐，我的快乐只是我的保护色。
有些昆虫有一种天然的保护色可以防止敌人的袭击。
Some insects have a natural camouflage which hide them from the attack of their enemy.
对于变色龙来说，这叫做保护色，对我们也是这样吗？
For chameleons this is a defense strategy, is it the same for us?
——你不是真正的快乐，你的快乐只是你的保护色。
You are not really happy, your happiness is just your camouflage.
白熊的体色是一种极好的保护色，无论什么敌害，都难以找到它的踪影。
The body color of the white bear is a protective color, whatever enemies are difficult to find it.
白熊的体色是一种极好的保护色，无论什么敌害，都难以找到它的踪影。
The body color of the white bear is a protective color, whatever enemies are difficult to find it.
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