My letter is, of course, strictly private and confidential.

当然，我的信纯属私人信件，务须保密。

《牛津词典》

Many consider their salary history to be private and confidential information.

很多人认为他们的薪水历史是私人的机密资料。

youdao

If you work with a lot of private and confidential information, be sure to use a briefcase that locks.

如果你的工作中有大量私人和机密信息，确保使用带锁的公文包。

youdao

She made this statement on Monday. "The United States deeply regrets the disclosure of any information that was intended to be confidential including private discussions between counterparts or our diplomats' personal assessments and observations.

VOA: special.2010.12.04

Over the course of their relationship, Darden and the Board Member frequently exchanged confidential information, with the understanding that their discussions would be kept private and confidential.

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The content of this profile is private and confidential information.

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Ms Caplen added that the information being discussed would be treated as private and confidential at the request of the Thomas family, although it was understood extra security measures were being considered.

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