It is still not known if he succeeded in reaching the top of Qomolangma.

目前仍不清楚他是否成功登顶珠峰。

Where to go is not known yet.

去什么地方还不知道。

So his strength was not known.

这样,他力气的根由人还是不知道.

Where she lives is not known yet…

她住在哪儿还不知道。

Three victims' ages were not known.

三名死亡者的年龄不详。

The cause of shooting was not known.

他开枪的原因还不得而知。

Mysterious; hidden and not known about

神秘的；隐秘的；隐藏的

What is happing outside is not known.

我知道他的意思.

I mean, this guy's not known for his aim.

我的意思是，这家伙没有目标是出了名的。

Not known or lacking marked individuality.

不知道或者缺少显著的个性。