问题描述:
Pigs do not have swat glands and can't sweat,s__pigs cool themselves in water or mud during hot
weather.They also use mud a__a form of sunscreen to protect their skin from hot sunlight.Besides,mud also p__pigs against flies and parasites翻译和填空
weather.They also use mud a__a form of sunscreen to protect their skin from hot sunlight.Besides,mud also p__pigs against flies and parasites翻译和填空
问题解答:
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