Unless a friendly alien from an advanced culture helps him out.

除非有友好的外星人能助我们一臂之力。

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Earlier this year, Hawking warned that humans should be wary about trying to make contact with other alien lifeforms in space as we could not be sure that they would be friendly.

今年早些时候霍金警告说，人类应该尽力避免与太空其他生命形式接触，因为我们无法肯定他们是友好的物种。

youdao

Earlier this year, Professor Hawking warned humans should be wary about trying to make contact with other alien life forms as we could not be sure that they would be friendly.

今年早些时候霍金警告说，人类应该尽力避免与太空其他生命形式接触，因为我们无法肯定他们是友好的物种。

youdao

Will Henriksen play the friendly Bishop we know from Aliens or the black-ops Bishop from Alien 3?

FORBES: Exclusive: Gearbox Reveals Details on Aliens: Colonial Marines, Prometheus, and Lance Henriksen