confidant|confidants

她是我的知己，我所有的秘密都可以告诉她。

She is my ___confidant, and I can tell her all my secrets.

他只把秘密告诉了最信任的密友。

He only shared his secrets with his closest ___confidants.

总统的心腹是他最信任的外交事务顾问。

The president's ___confidants are his most trusted advisors on foreign affairs.