the need for absolute secrecy in this matter
在这件事情上绝对保密的必要性
the fact of making sure that nothing is known about sth; the state of being secret 保密；秘密:
20秒记一个单词（第1459个）secrecy
the need for absolute secrecy in this matter
在这件事情上绝对保密的必要性
the fact of making sure that nothing is known about sth; the state of being secret 保密；秘密:
