Third, the human lifetime is only so long ( 150 years seems to be tops).
第三， 人的寿命只有那么长（150 年似乎是个上限） 。
One scientist told the interviewer that he expects the average human lifetime to be 1000 years!
一个科学家告诉采访者说，他预计，人类的平均寿命将千年！
They've discovered a bizarre world with not two but three SUNS - and seasons that last longer than a human lifetime.
他们发现了一个奇妙的新世界，在这里，你能看到不止两个太阳，而是三个，同时，每一个季节都比人类的一生还要漫长。
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