名词
中文翻译：多瑙河石
同义词：
['Danubian', 'Danube pebbles例句：1. The riverbed is covered in a layer of smooth', 'Danubite pebbles.（河床覆盖着一层光滑的、多瑙河卵石。）2. The Danube Delta is a unique ecosystem that supports a variety of plant and animal life.（多瑙河三角洲是一个独特的生态系统，支持着各种植物和动物的生命。）3. The Danube River flows through the heart of Europe', 'providing a vital source of water for millions of people.（多瑙河流经欧洲的中心地带，为数百万人提供宝贵的水源。）']
例句：
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1. The riverbed is covered in a layer of smooth, Danubite pebbles.
河床覆盖着一层光滑的、多瑙河卵石。
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2. The Danube Delta is a unique ecosystem that supports a variety of plant and animal life.
多瑙河三角洲是一个独特的生态系统，支持着各种植物和动物的生命。
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3. The Danube River flows through the heart of Europe, providing a vital source of water for millions of people.
多瑙河流经欧洲的中心地带，为数百万人提供宝贵的水源。