名词
中文翻译：频道转换器
同义词：
['channel changer', 'channel switcher例句：1. The radio was set to a different channel when we arrived home.（我们到家时，收音机被调到了一个不同的频道。）']
例句：
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1. The radio was set to a different channel when we arrived home.
我们到家时，收音机被调到了一个不同的频道。
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2.The engineer used a channel shifter to tune in the local news station.
工程师使用频道切换器来调入当地新闻台。
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3. The new TV model has a built-in channel shifter that makes it easy to switch between channels.
新款电视内置了频道切换器，使切换频道变得很容易。