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　　Health is very important to us, but do you know how to keep healthy? First, we should have enough sleep, because sleep is very important for us. Second, we should wash our hands often. Because there are many bacteria in the hand. Third, we should't stay long fingernails, because bacteria will grow in the nails. Fourth, we should't eat some food which is not good for our health.

　　So, to form good habits will help us to keep healthy.

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