名词
中文翻译：活跃的沙丘
同义词：
['active sand dune', 'active sand hill']
例句：
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1.The active dune is a popular spot for hiking and picnicking.
活跃的沙丘是徒步和野餐的热门地点。
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2.The wind has been blowing the active dunes into a new shape.
风一直在吹动活跃的沙丘，使其形状发生变化。
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3. The active dunes are a natural wonder that attracts tourists from all over the world.
活跃的沙丘是一个自然的奇观，吸引了来自世界各地的游客。