subterranean
adjective /ˌsʌbtəˈreɪniən/
/ˌsʌbtəˈreɪniən/
[usually before noun] (formal)- under the ground
地下的 - a subterranean cave
地下洞穴
Collocations DictionarySubterranean is used with these nouns:- chamber
- passage
- tunnel
- …
词源early 17th cent.: from Latin subterraneus (from sub- ‘below’ + terra ‘earth’) + -an. - a subterranean cave