名词
中文翻译：核心频道
同义词：
['main channel', 'primary channel', 'essential channel']
例句：
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1. The news channel is the main source of information for our community.
新闻频道是我们社区的主要信息来源。
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2. The broadcaster's core channel is dedicated to educational programming.
广播公司的主频道专注于教育节目。
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3.The cable network has a core channel that caters to young adults.
有线电视网络有一个针对年轻人的核心频道。