名词
中文翻译：邮政飞机
同义词：
['postal aircraft', 'postal plane']
例句：
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1. The postal service uses these machines to deliver mail.
邮政服务使用这些机器来投递邮件。
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2. The postal authorities are considering the introduction of new postal aircraft.
邮政当局正在考虑引入新的邮政飞机。
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3. The postal officials were discussing the latest developments in the use of postal planes.
邮政官员们正在讨论邮政飞机的最新发展情况。