我们在墙后发现了秘密通道。
We discovered a secret passage behind the wall.

科学家已经揭开了原子的秘密。
Scientists have unlocked the secret of the atom.

我能把这些秘密计划委托给你吗？
Can I entrust you with the secret plans?

别把秘密告诉他，他的嘴不严。
Never tell him a secret; he's got a loose tongue.

她很谨慎，不会泄露秘密。
She is cautious of telling secrets.

我答应决不泄漏他的秘密。
I promise never to reveal his secret.

秘密一直没有泄漏。
The secret endured.

他的秘密至死也不为人知，因为他从未告诉过别人。
His secret died with him, for he never told anyone.