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笑,是社会交往、增进友谊的需要,是搞好服务、招财致富的举措,也是保健养生、延年益寿的良药。当今社会,许多行业、许多城市甚至许多国家,都要求人们
Laughing is the need for social interaction and friendship. It is an initiative to do a good job of service and wealth enrichment. It is also a good medicine for health preservation and longevity. In today’s society, many industries, many cities and even many countries require people