形容词
中文翻译：Unknown
同义词：
['empty', 'void', 'hollow', 'insubstantial例句：1. The room wasvacuous of life as soon asthe lights went out.（灯光熄灭后，房间变得空荡荡的。）']
例句：
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1. The room wasvacuous of life as soon asthe lights went out.
灯光熄灭后，房间变得空荡荡的。
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2. His speechlacked substance and was vacuously repetitive.
他的演讲缺乏实质内容，只是空洞地重复。
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3. The bookis vacuous of any real insightsor analysis.
这本书没有任何真正的见解或分析。