名词
中文翻译：Unknown
同义词：
['empty talk', 'empty words', 'empty rhetoric']
例句：
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2. 讨论，辩论。3.
对某事
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1. The professor's lecturewas filled with empty talk and no realinsights.
教授的讲座充满了空洞的说教和没有真正的见解。
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2. They engagedin a lively debateabout the latest political developments.
他们就最新的政治发展进行了热烈的辩论。
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3. He often speaks out on important issues, but his opinions are mostly empty words.
他经常就重要问题发表意见，但大多数时候只是空洞的话语。