沉积，亲爱的(Sedimentary, my dear)

你准备好制造一些噪音了吗？今天是国际摇滚日！等等，不是那种石头。今天，我们谈论的都是花岗岩、石灰岩和板岩。岩石有三种类型：火成岩是由凝固的岩浆和熔岩形成的；沉积岩是沉积颗粒层，如沙子；变质岩是其他岩石受热和受压的结果。
原文：
Are you ready to make some noise? It's International Rock Day! Wait, not that sort of rock. Today, we're all about granite, limestone and slate. There are three types of rock: igneous are formed from solidified magma and lava; sedimentary rocks are layers of sedimentary particles such as sand; and metamorphic rocks are the result of heat and pressure on other kinds of rock.
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