A mouse leads a clandestine life below the ground. 耗够底密命。
They had a clandestine meeting in the park yesterday. 园黑。
clandestine [ adj ] conducted with or marked by hidden aims or methods <adj.all> clandestine intelligence operationscloak-and-dagger activities behind enemy lines hole-and-corner intrigue secret missions a secret agent secret sales of arms surreptitious mobilization of troops an undercover investigation underground resistance
Clandestine \Clan*des"tine\, a. [L. clandestinus, fr. clam secretly; akin to celare, E. conceal: cf. F. clandestin.] Conducted with secrecy; withdrawn from public notice, usually for an evil purpose; kept secret; hidden; private; underhand; as, a clandestine marriage. --Locke.