名词
中文翻译：接力信标
同义词：
['接力站，接力点例句：1. The relay post is located at the top of the mountain.（接力点位于山顶。）']
例句：
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1. The relay post is located at the top of the mountain.
接力点位于山顶。
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2. The relay post was used to send messages between different countries.
接力点用于在不同国家之间传递信息。
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3. The relay post was a crucial part of the communication system.
接力点是通信系统的重要组成部分。