秘密

1. secret; clandestine; confidential

2. sth. secret

♦ 探索海底的~ explore the secrets of the ocean bed

♦ 军事~ a military secret

~报告 a secret report~会议 secret meeting; closed-door session~活动 clandestine activities~警察 secret police~渠道 back channel~文件 secret papers; confidential document