Once read, the book vanishes into the Astral Plane to an unknown destination.

阅读后该书将消失于星界位面的不知名处。

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The vessels are taken over by armed pirates and then forced to sail to an unknown destination, where the cargo is discharged into a smaller tanker, and then the vessel is brought back and released.

船只被持有武器的海盗劫持，被迫驶向未知的目的地，货物被分装到小一些的油轮，然后，船只被带回并获释。

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Life can be likened to a journey with an unknown destination.

生活可以被比作一次不知目的的旅行。

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Afghan and NATO officials say that Taliban insurgents in the northern Kunduz province were driving two hijacked fuel trucks to an unknown destination when fighter planes located them on a river bank and bombed them.

VOA: standard.2009.09.04

His family told the ECHR that he was taken to an unknown destination.

BBC: UAE authorities 'detain 18-year-old blogger'

Mohammed Salem al-Zumer was reportedly detained by state security officers in the emirate of Sharjah on Wednesday and taken to an unknown destination.

BBC: UAE authorities 'detain 18-year-old blogger'

Ride a train to an unknown destination.

BBC: The bloom of cancer