speleology
柯林斯词典
1. N the scientific study of caves, esp in respect of their geological formation, flora and fauna, etc (關於其地質搆成、植物和動物群系等的)洞穴學
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speleology (also spelaeology)
剑桥词典
- geology
the scientific study of caves
洞穴學
sports
the sport of walking and climbing in caves
洞穴運動；洞穴探險 返回 speleology