名词
中文翻译：石笋
同义词：
['stalactite', 'stalagmite']
例句：
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1.The ancient temple was built on a hillside and has many speleothems.
这座古老的寺庙建在山坡上，有许多石笋。
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2. The cavern is filled with thousands of stalactites and stalagmites.
这个洞穴充满了成千上万的石笋和石柱。
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3.The speleothems are evidence of the ancient civilization's existence.
这些石笋是古代文明存在的证据。