人们认为地壳分成了巨大的、可移动的部分，称为板块，这些板块漂浮在柔软可塑的岩石层上。

The Earth's crust is thought to be divided into huge, movable segments, called plates, which float on a soft plastic layer of rock.

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这里被称为火圈带，一个由剧烈移动的板块和火山组成的半圆形区域，分布在太平洋沿岸。

It's called the Ring of Fire, a semicircle of violently shifting plates and volcanoes that runs along the edges of the Pacific Ocean.

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当一个板块向另一个板块下俯冲时，那里就被称为俯冲带。

This is called a subduction zone when one plate subducts beneath another.

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