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因为他们,业主的生活更加安全、温馨、舒适了!有这样一群人,他们身着蓝色工服,背着工具包,行色匆匆地奔走于不同业主的家。因为他们,业主卫生间的马桶通
Because of them, the owner’s life is safer, warm and comfortable! There are groups of people dressed in blue work clothes and carrying tool kits hurrying to different owners’ homes. Because of them, the owners bathroom toilet pass