名词
中文翻译：空白频道
同义词：
['空频道，无信号频道例句：1. The TV was on', 'but the blank channel was not working.（电视开着，但是空白频道不工作。）']
例句：
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1. The TV was on, but the blank channel was not working.
电视开着，但是空白频道不工作。
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2.The radio station had a blank channel for a while.
电台暂时没有信号。
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3. We tried to tune into the blank channel to see if it would work.
我们试图调到空白频道看看能不能工作。