Karst cave溶洞;岩溶洞穴;喀斯特洞穴;岩溶溶洞
cave deposit洞穴沉积;[地质] 洞穴堆积
cave dwelling窑洞;窑居
hot cave高放射性物质工琢蔽室;[核] 热室
solution cave溶蚀性孔洞;溶蚀洞
Cave Temples石窟寺
Cinder Cave渣滓洞
cave archeology洞穴考古
Underground cavern include the natural underground vacant areas （for example, karst cave）, underground mined area formed in the mine production progress and artificial cavern because of manual excavation （for example, air defense cave and tunnel）.
地下洞室包括各类天然形成的地下空区（溶洞等）、矿山生产过程中形成的地下采空区以及各类人工开挖形成的洞室（如人防洞、隧道等）。
参考来源 - 岩石地下洞室与边坡的相互影响研究It is pointed as follows: North Shaaxi Loess Plateau has a long history in rural settlements. Cave settlements came to exist as early as Yangshao Culture Period 5000 years ago.
指出,陕北黄土高原乡村聚落的发展历史悠久、源远流长,5000年前的仰韶文化时期,窑洞就已经出现,定边县樊学乡白狼岔坟垧峁盖东北山坡的坟垧峁盖遗址应该是陕北黄土高原迄今发现最早的黄土窑洞遗址。
参考来源 - 期刊学术社区Shanyangzhai mammalian fauna located in Liujiang Basin, Qinhuangdao, Hebei Province are mainly in the cave sediments. It is dominated by small animal fossils and the large-scale mammal fossils are limited.
山羊寨哺乳动物群位于河北秦皇岛柳江盆地,化石主要存于一残破的洞穴堆积物中,该动物群主要以小型哺乳动物化石为主,大型哺乳动物化石数量相对有限。
参考来源 - 河北秦皇岛山羊寨哺乳动物群中的兔科动物化石N-COUNT（可数名词） A cave is a large hole in the side of a cliff or hill, or one that is under the ground. 洞穴
Outside the cave mouth the blackness of night was like a curtain.
洞口外面，漆黑的夜晚宛如一块幕布。
V（动词） to hollow out 挖洞