常見例句The theory of plate tectonics holds that the surface of Earth is composed of a dozen or so huge crustal slabs that float on a sea of partially molten rock.板塊搆造論認(rèn)爲(wèi)，地球表麪由十來個(gè)巨大的地殼板塊搆成，漂浮在浩瀚如海的部分熔巖上。 返回 crustal plate