太阳系外还有另外一个完全未知的宇宙，无人察觉。

There is a whole uncharted universe out there that nobody else is aware of.

youdao

太阳系外还有另外一个完全未知的宇宙，无人察觉。

There is a whole uncharted universe out there that nobody else is aware of.

youdao