名词
中文翻译：邮局
同义词：
['mailbox', 'post office building', 'postal service']
例句：
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1. The post office is located in the center of town.
邮局位于镇中心。
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2. I need to send a package by postal mail.
我需要通过邮政邮件寄送一个包裹。
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3. The post office provides free delivery services for residents.
邮局为居民提供免费送货服务。