We found some really interesting caves, but we didn't have the gear to go spelunking.
我们发现一些相当有趣的洞穴，但我们没有装备去进行洞穴
。
We found some really interesting caves, but we didn't have the gear to go spelunking.
我们发现一些相当有趣的洞穴，但我们没有装备去进行洞穴。
It may also be referred to as "draining" (when exploring drains) "urban spelunking", "urban caving", or "building hacking".
也被称为“下水道
”，“城市洞穴”，“建筑”
。
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