a large hole in the side of a hill or cliff or under the ground 山洞;洞穴 the mouth (= the entrance) of the cave 洞口 The area contains vast underground cave systems. 该地区包含巨大的地下洞穴系统。 a cave-dweller (= a person who lives in a cave) 穴居人 We took shelter in a dark cave. 我们躲避在一个黑暗的洞穴里。 a collapsed limestone cave 坍塌了的石灰岩洞
Oxford Collocations Dictionaryadjective- deep
- large
- shallow
- …
- explore
- collapse
- ceiling
- entrance
- floor
- …
- in a/the cave
- the ceiling of a cave
- the floor of a cave
- the roof of a cave
- …
Word OriginMiddle English: from Old French, from Latin cava, from cavus ‘hollow’ (compare with cavern). The usage cave in may be from the synonymous dialect expression calve in, influenced by obsolete cave ‘excavate, hollow out’.