Definition
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rock
A rock is a naturally occurring solid aggregate of one or more minerals or mineraloids.
岩石是自然发生的由一种或多种矿物或矿物类物质组成的固体集合体。
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The mountain is made of solid rock.
这座山是由坚固的岩石组成的。
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We collected different types of rock on our hike.
我们在徒步旅行中收集了不同种类的岩石。
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The builders used large rock to create the foundation.
建筑工人用大块岩石来建立基础。