【摘 要】
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After riding an electric tricycle to an office building and putting his packages in order, 39-year-old Yang Lianfu began to call the customers. Within minutes,
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After riding an electric tricycle to an office building and putting his packages in order, 39-year-old Yang Lianfu began to call the customers. Within minutes, all the customers in the block had been informed about their deliveries.
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