The sample consisted of pebbles of hardened sediment that had once been soft, deep-sea mud, as well as granules of gypsum and fragments of volcanic rock.

这一样本包括曾经柔软的的硬化沉积物的卵石、深海淤泥以及石膏颗粒和火山岩碎片。

youdao

The courtyard has pebbles and stones surrounded by grass, with an understated cascading fountain made from Balinese volcanic rock that collects rainwater and seeps into the stone.

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