名词
中文翻译：购买许可
同义词：
['permit to purchase', 'purchase permit', 'license to buy']
例句：
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1. To obtain a purchase permit, you must submit the necessary documents and pay the required fees.
要获得购买许可证，你必须提交必要的文件并支付所需的费用。
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2.The company needs a purchase permit to import new equipment into the country.
该公司需要购买许可证才能将新设备进口到该国。
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3.Without a purchase permit, it is illegal to sell or trade in prohibited items.
没有购买许可证，销售或交易受禁物品是非法的。