Definition
这是一个固定表达（成语），字面意思是“保密而不公开”。用于强调故意隐瞒信息，不向外界透露。常用于正式或书面语境，带有一种刻意保密的意味。
f.e.
to keep something secretto not discloseto conceal
Examples
- 秘而不宣，。Zhè jiàn shì tā yìzhí mì ér bù xuān, lián jiārén dōu bù zhīdào.He has kept this matter a secret, not even his family knows.
- 秘而不宣，。Gōngsī duì xīn chǎnpǐn jìhuà mì ér bù xuān, zhídào fābùhuì cái gōngkāi.The company kept the new product plan under wraps and only revealed it at the launch event.
- 秘而不宣，。Tāmen mì ér bù xuān de jìnxíng le tánpàn, wàijiè háo bù zhīqíng.They conducted the negotiations in secret, completely unknown to the outside world.
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