名词
中文翻译：砾石层
同义词：
['conglomerate', 'gravelly conglomerate例句：1. The riverbed is covered in a layer of clastic breccia.（河床覆盖着一层砾石层。）']
例句：
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1. The riverbed is covered in a layer of clastic breccia.
河床覆盖着一层砾石层。
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2.The construction site was littered with cobbles and clastic breccia.
施工现场到处都是卵石和砾石层。
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3. The geologist found evidence of ancient rivers flowing over the clastic breccia.
地质学家发现了古老河流流经砾石层的证据。