C1 secret, often in a formal, business, or military situation秘密的,机密的
More examples
A person's medical records are confidential.
We have certain reasons for our decision, which have to remain confidential.
He locked the confidential documents in his filing cabinet.
The letter was marked 'Personal. Strictly confidential.'
Someone has leaked confidential government information to the press.
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net
切換為繁體中文