Scientists have discovered that most of the active volcanoes in the world are located in a T-shaped area.科学家们发现,世界上大部分活火山都位于一个T形地区里。Hawaiian volcanoes are among the most thoroughly studied and systematically monitored ac...
Volcanoes and geysers erupt.火山和间歇喷泉均能喷发.He has been able to tell us more about active volcanoes than any man alive.他现在比任何人都能更多地向我们讲述有关活火山的情况.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....