1. 形容詞
   秘密的, 機密的
   信任的, 獲信任的
   參與機密的
   

   同義字詞
   behind-the-scenes,esoteric,hush-hush,hushed,inside,intimate,nonpublic,private,privy,secret
   

例句

1. All calls can be confidential .
2. Right to Request Confidential Communication.
3. The Med Net service IS FREE and confidential .
4. All conversations are private and confidential .
5. Our advice is tailor made, confidential and free.
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