名词
中文翻译：电话
同义词：
['post office', 'postal box']
例句：
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1.The letterphone is the only way to reach her now.
现在，这台有信箱的电话是联系她的唯一的方式。
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2.He placed his letter in the mailbox and waited for a response.
他把信件放在邮箱里，等待回复。
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3. She posted her letters at the post office.
她在邮局寄出了她的信件。