猫咪为什么要遮住脸睡觉？

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Cats are pros at relaxing. They spend almost two-thirds of their lives asleep. If you've ever noticed your feline friends covering their faces as they nap， you may have wondered why. It turns out the action makes it easier for them to catch some Z's.

猫是放松的“专家”。（剩余2414字）