| 1. | You speak of living on the lid of a volcano . 你谈到在火山口上生活。
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| 2. | An active volcano vomits forth smoke and lava . 活火山喷出烟雾和熔岩。
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| 3. | Volcanoes may exploded violently . 火山可能猛烈地喷发。
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| 4. | A volcano spouts flame and lava . 火山喷出火焰和岩浆。
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| 5. | The volcano is inactive . 这座火山已进入休止状态。
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| 6. | This is an active volcano which spews out lava every year . 这是个每年喷熔岩的活火山。
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| 7. | There is a volcano almost as big as new mexico . 那里有一座火山,几乎象新墨西哥州那么大。
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| 8. | The cascade range, to the north, is made up of volcanoes . 北边的喀斯喀特山脉由一群火山组成。
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| 9. | At the same time, steam was building up within the volcano . 与此同时,在火山中形成了水蒸汽。
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| 10. | We were concerned that the north slope of the volcano might slide away . 我们关心的是,火山北坡将会崩塌。
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