keep secret

基本解释

Majia and his fellow hackers keep secret their knowledgeof certain so-called zero-day vulnerabilities — software flaws — forfuture use, he says.
马甲和他的同行们会对他们知道的一些所谓“零天漏洞”——即软件缺陷——保密，以备将来使用。
The use of "super- injunctions", under which commercial corporations claim the right to keep secret the fact that they have been to court, has been growing.
“超级禁制令”正在被越来越多地使用，商业机构借其向法院求助，声称自己拥有保护公司机密的权利。
A public official may wish to keep secret details of an extramarital affair. But if public funds or other resources are used to support the affair, they become a matter of legitimate public interest.
一名政府官员可能希望将其婚外情的详情保密，但是，如果在婚外情中动用了公款或其他资源，那么，这就成为一个合理的值得公众关心的问题。

But the next year, the Academy decided to keep the names of the winners a secret until the awards ceremony.
They keep that night a special secret which makes them feel even closer to each other.
那天晚上的事成了他们的秘密,这让他们觉得彼此更亲近了。
耶鲁公开课 - 心理学导论课程节选
I'm going to keep this secret like a good friend.
我会像一个好朋友那样严守秘密。
That's all实战 - SpeakingMax英语口语达人

Do you plan to keep secret from your children how much they stand to inherit?
FORBES: The Great Trust Rebellion