名词
中文翻译：频道
同义词：
['avenue', 'path', 'route', 'thoroughfare']
例句：
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1.The radio station broadcasts on several channels.
这家电台在几个频道上广播。
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2.He used to travel by train as a channel to his home country.
他过去常通过火车作为前往祖国的通道。
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3.The new highway is the main channel for traffic between the cities.
这条新高速公路是两个城市之间交通的主要通道。