名词
中文翻译：火山灰
同义词：
['volcanic ash', 'volcanic slag例句：1. The eruption of the volcano has left a lot of hopcalite in the air.（火山爆发留下了大量的火山灰。）']
例句：
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1. The eruption of the volcano has left a lot of hopcalite in the air.
火山爆发留下了大量的火山灰。
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2. The scientists are studying the effects of the volcanic ash on the environment.
科学家们正在研究火山灰对环境的影响。
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3. The volcanic slag is being used as a building material in some parts of the world.
在一些地方，火山灰被用作建筑材料。