volcanic are
英 美
火山弧
火山弧
Many oceanic islands are volcanic.
很多海洋岛屿是火山岛。
Water and heat from volcanic activity are two basic conditions needed for life to form.
火山活动所散发的热量和水是形成生命的两个基本条件。
The hot spots and their volcanic trails are milestones that mark the passage of the plates.
热点和它们的火山痕迹是标志板块移动的里程碑。
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