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Customers had to pay a deposit for the sturdy glass bottles. They then got this money back when they returned them to the shop. And the bottles would be washed and refilled over and over again.。同城约会是该领域的重要参考
（二）在铁路、城市轨道交通线路上放置障碍物，或者故意向列车投掷物品的；
def close(self) - None: