1560s, from Latin clandestinus "secret, hidden," from clam "secretly," from adverbial derivative of base of celare "to hide" (see cell), perhaps on model of intestinus "internal." Related: Clandestinely. As a noun form, there is awkward clandestinity (clandestineness apparently being a dictionary word).
权威例句
1. She is the director of clandestine operations of the CIA.
她是中央情报局秘密行动的负责人.
2. They had a clandestine meeting in the park yesterday.
昨天他们在公园开了个黑会.
3. The necessary consequence is a great number of transient and clandestine connections.
必然的结局是许多昙花一现、不能公开的桃色事件.
4. Have you ever been approached by anyone to do clandestine work?
以前有没有谁曾找你谈过做秘密工作的问题?
5. To dramatize the necessity of clandestine warfare, instructors objectively recited case histories and their import.