名词
中文翻译：邮政服务
同义词：
['mail service', 'postal delivery例句：1. The postal service is essential for sending and receiving mail.（邮政服务对于发送和接收邮件至关重要。）']
例句：
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1. The postal service is essential for sending and receiving mail.
邮政服务对于发送和接收邮件至关重要。
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2. The postal service provides reliable delivery of packages.
邮政服务提供可靠的包裹配送服务。
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3. The postal service has been improving its efficiency in recent years.
邮政服务近年来一直在提高其效率。