名词
中文翻译：Unknown
同义词：
['void vortex', 'hollow vortex', 'hollow whirlpool']
例句：
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1. The hollow vortex was a source of confusion for the scientists.
这个空洞涡旋给科学家们带来了困惑。
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2.The void vortex was a dangerous phenomenon that could cause accidents.
空洞涡旋是一种危险的自然现象，可能会导致事故。
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3. The hollow whirlpool was a sight to behold as it swirled around the island.
这个空洞涡旋在岛屿周围旋转时，真是令人惊叹的景象。