名词
中文翻译：峡谷填充物
同义词：
['valley fill', 'canyon filler', 'gorge filler']
例句：
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1.The river has carved a deep canyon in the rocky terrain.
这条河流在岩石地形中雕刻出一个深深的峡谷。
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2.The engineer carefully filled the canyon with concrete to prevent further damage.
工程师小心地用混凝土填充峡谷，以防止进一步的损害。
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3.The canyon fill is being used as a natural barrier to protect the fragile ecosystem.
峡谷填充物被用作保护脆弱生态系统的自然屏障。