名词
中文翻译：公共通信服务
同义词：
['公共通信服务，公共通信设施，公共通信系统']
例句：
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1.The public correspondence service provides a secure way to send and receive messages.
公共通信服务提供了一个安全的方式来发送和接收消息。
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2. The public correspondence service is essential for maintaining communication between different countries.
公共通信服务对于保持不同国家之间的沟通至关重要。
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3. The public correspondence service has improved significantly in recent years, making it easier for people to communicate with each other.
近年来，公共通信服务得到了显著改善，使人们更容易相互沟通。