吃透英语课本，提升在校竞争力
n. 秘密；保密；隐蔽
复数：secrecies
I must stress the need for absolute secrecy about the project.
我必须强调这项计划一定要绝对保密。
His work was shrouded in secrecy .
他的工作秘而不宣。
the veil of secrecy that covered the talks
笼罩在会谈上的神秘面纱
in secrecy
保密地
n.保密；秘密；隐蔽
privacy
confidence
mystery
