“地壳”的英语表达是 “crust”,在地质学语境中,它特指地球最外层的固体壳层。
例如:
The Earth's crust is divided into several tectonic plates.(地壳被划分为多个构造板块。 )
The thickness of the oceanic crust is generally thinner than that of the continental crust.(海洋地壳的厚度通常比大陆地壳薄。 )