名词
中文翻译：火山灰岩
同义词：
['pyroclastic rock', 'pumice', 'ash-bearing rock']
例句：
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1. The volcano erupted, and the ash fell on the ground.
火山爆发了，火山灰落在了地上。
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2. The ash from the volcanic eruption is a valuable resource for building materials.
火山喷发产生的火山灰是建筑材料的宝贵资源。
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3. The ash from the volcanic eruption has been used to make bricks and tiles.
火山喷发产生的火山灰被用来制作砖块和瓷砖。