It also slows down more as you move faster, which means astronauts some day may survive so long in space that they would return to an earth of the distant future.
当你移动得更快时,它的速度也会减慢,这意味着有一天宇航员可能会在太空中生存很长时间,以至于在遥远的将来他们才会回到地球。
And some researchers say liquid water may periodically form just below the planet's surface - which may provide just enough of a toehold for life to survive there.
而且有些研究者称液态水可能会定期形成于行星地表之下——由此可能为生命的生存提供了足够的立足点。
Another worry is that the eggs and larvae of some fish may be unable to survive in more acidic water, and that creatures like squid which need a lot of oxygen will also die out.
另一个担忧是有些鱼类的鱼卵和仔鱼可能无法在酸性较强的水里存活,像乌贼那种需要大量氧气的生物也会死亡。
And sexual selections give rise to a host of organisms, some of which survive and are fit and others which aren't.
性选择导致了大量有机体的产生,其中的一些有机体生存了下来,适应了竞争,而其他则遭到淘汰。
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