I was extremely nervous of mount St. Helens erupting.
我非常紧张,害怕圣.海伦斯火山爆发.
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Mount St. Helens is only one of many volcanoes in the Pacific Northwest.
圣海伦火山只是太平洋西北部众多火山中的一座.
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The eruption of Mount St. Helens in 1980 was the direct result of plate subduction.
圣海伦火山在1980年的喷发是板块沉降的直接结果.
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