除非有友好的外星人能助我们一臂之力。
Unless a friendly alien from an advanced culture helps him out.
我们的信号传达到外星智慧生命那里也许需要几百年几千年甚至几百万年，但是如果收到信号的外星人并不友好，我们的命运可想而知。
Although it might take hundreds, thousands or even millions of years for our signal to reach an intelligent "ear," if that ear isn't a friendly one, we've basically decided our future-Earth's fate.
毕竟，我们对这些假设的外星人的本性毫不了解，为什么要假设他们是友好的呢？
After all, we have no clue about the nature of these hypothetical aliens, why assume they're friendly?
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