They had advised us to keep it a secret, but we wanted it out in the open.

他们曾建议我们对其保密，但我们却想将它公之于众。

《柯林斯英汉双解大词典》

Sometimes a market trader would put a cat in his bag and pretend it was a pig to fool the customer! So if someone lets the cat out of the bag, the secret would be open to us.

有时一个市场商人会把一只猫放在他的包里，假装它是一只猪来愚弄顾客！所以如果有人让猫从包里出来，秘密就会为我们所知。

youdao

The open secret is that everyone infringes everyone else’s patents in some way.

公开的秘密是每一个人都在以某种方式侵害每一个人的专利权。

youdao

The safety problem is an open secret among people in the health care industry.

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Double-dipping fees have been an open secret in the industry for years.

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And with respect to the Middle East, it is an open secret that the United States played no significant role in the diplomacy that led to the Israeli-Palestinian breakthrough.

CENTERFORSECURITYPOLICY: Center For Security Policy