caving
['keiviŋ]
n.洞穴探察, 崩落开采法, 塌落
例句与用法:
Caving means exploring the passages underneath the hills.
洞穴探险运动是指探察山中的通道而进行的活动。
He likes caving.
他喜欢洞穴探险运动。
An underground tunnel or passageway, as in a cave or one dug for military or mining purposes.
隧道,地道地下隧道或通道,如在洞穴内的或为军用、采矿而挖掘的地道
详细释义:
n.
洞穴探察