A revealing statement, account, or action tells you something that you did not know, especially about the person doing it or making it. 透露内情的
adjective [原级] 透露真情的;有启迪作用的;袒胸露肩的
...a revealing interview. … 一次透露内幕的采访。
verb [vt. 及物动词] 揭示;展现(reveal 的 ing 形式)
She was dismissed for revealing trade secrets. 她因泄露商业机密被解雇。