问题描述:
mustn`t talk with you mouth full of food
mustn`t start to eat before all the seniors arrive
mustn`t go back home too late
mustn`t lie
mustn`t offend the old people whether she or he is a family member or not
mustn`t start to eat before all the seniors arrive
mustn`t go back home too late
mustn`t lie
mustn`t offend the old people whether she or he is a family member or not
问题解答:
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