That, madame, is an officialsecret; but if you have any commissions for Paris, a friend of mine is going there to-night, and will with pleasure undertake them.
夫人，这是法院的秘密，但假如您在巴黎有什么事要办，我的一位朋友今晚上就上那儿去。
2
A government official disclosed that they were on a secret blacklist.
一位政府官员透露说，他们被列入了秘密黑名单。
《柯林斯英汉双解大词典》
3
The J-20 was until recently so secret that it did not have an official name and was known as the J-XX among Western defense and intelligence officials and experts.