crust

/krəst/

the outer layer of the Earth

Chinese meaning: 地壳

The Earth's crust is composed of several tectonic plates that move slowly.

地壳由几个缓慢移动的构造板块组成。

Volcanic eruptions occur when magma from the mantle rises through the crust.

当地幔中的岩浆穿过地壳上升时，就会发生火山喷发。