It was a very secret place in a cave.

这是山洞里一个非常秘密的地方。

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He kept some money in a secret place.

他将一些钱存放在一个隐秘的地方。

youdao

Secret He kept some money in a secret place.

他将一些钱存放在一个隐秘的地方。

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Between 2009 and 2011, high-level secret talks took place between the PKK and the Turkish government in Oslo, Norway, but they collapsed after a clash between Turkish soldiers and the PKK in June 2011, in which 14 Turkish soldiers were killed.

BBC: Profile: The PKK

Secret meetings take place.

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Although the government says all the fish have now been destroyed, environmentalists believe it demonstrates that much of the work on genetic modification is taking place in secret.

BBC: News | UK | 'Night of the short knives' disappoints press