当地官员说：秘密在于说“请”和“谢谢”，人们并非一定要接受有标签的垃圾箱，但是他们会选择登记以得到回报。
The secret lies in saying please and thank you, say local officials: people do not have to take tagged recycling bins, and can choose whether to enroll for rewards.
当地官员说：秘密在于说“请”和“谢谢”，人们并非一定要接受有标签的垃圾箱，但是他们会选择登记以得到回报。
The secret lies in saying please and thank you, say local officials: people do not have to take tagged recycling bins, and can choose whether to enroll for rewards.
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