名词
中文翻译：小石穴
同义词：
['lichen', 'stalactite', 'stalagmite例句：1. The fossula is a natural formation that has been formed over millions of years.（这个小石穴是数百万年自然形成的。）']
例句：
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1. The fossula is a natural formation that has been formed over millions of years.
这个小石穴是数百万年自然形成的。
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2.The fossula is located in the heart of the cave, providing a unique view of the surrounding environment.
这个小石穴位于洞穴的中心，为周围环境提供了独特的视角。
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3. The fossula is a popular destination for tourists who want to explore the underground world.
这个小石穴是游客探索地下世界的热门目的地。