clandestine

adj.

秘密的；私下的；暗中的；

1. They had a clandestine meeting in the park yesterday.
   昨天他们在公园开了个黑会。

Clandestine location reporting by a missing vehicle
The clandestine drug laboratory situation in the United States.
Hydrogen sulfide: clandestine microbial messenger?
Detecting clandestine material with nuclear resonance fluorescence
The Clandestine Epidemic: The Practice of Unsafe Abortion in Latin America
Clandestine Crossings: Migrants and Coyotes on the Texas-Mexico Border by David Spener
Geologic Constraints on Clandestine Nuclear Testing in South Asia
Estimating clandestine abortion with the confidants method--results from Ouagadougou, Burkina Faso.
Synthetic reductions in clandestine amphetamine and methamphetamine laboratories: A review
Importance of tumor cells in axillary node sinus margins ('clandestine' metastases) discovered by serial sectioning in operable brea...