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- How did life arise on Earth? 生命如何在地球出现?
- How did life arise in the first place? 生命最初是怎样起源的?
- How and Where Did Life on Earth Arise? 地球上的生命是如何产生的?在哪里产生的?
- How and Where Did Life on Earth Arise? By Melon What Determines Species Diversity? 是什么决定了物种多样性?
- But will life arise on such planets? 可是在这样的行星上能出现生命吗?
- It is possible that life arose on Earth several times, each time generating life-forms with different chemical characteristics. 这些可能是因为生命体在地球上起起落落几次，每一次都有不同的化学特性。
- How did I picture the life after the grave?I fairly bawled out at him: "A life in which I can remember this life on earth. 于是，我就朝他喊道：“一种我可以回忆现在这种生活的生活！”
- How on earth do they manage to rob the bank? 他们到底怎么抢了银行的？
- How does life thrive in a seemingly barren landscape? 生物如何在这片看似荒芜的地域生存?
- How on earth did you manage that? 你到底是怎么做的？
- This new energy on Earth almost demands that you start asking the questions, "How did they do that? 在地球上的这新的能量几乎要求你开始提出疑问，“他们是如何做到的？”
- How did life begin? 生命是如何起源的?
- How do You think You can have some positive effect on Earth, I mean what would you do, practically? 您如何可以对地球有一些正面的影响?您实际上是怎么做的呢?
- How did you come by that scratch on your cheek? 你脸上的抓痕是怎么来的？
- Why on earth didn't you tell me the truth? 你到底为什么不跟我说实话？
- How do they manage to subsist on such a low wage? 他们这点工资怎么糊口？
- No power on earth could force me to do it. 谁也不能强迫我做这事。
- How did you get that cut on your hand? 你的手是怎么割伤的？
- If, for example, Martian microbes arrived on Earth after life independently arose on our planet, the extraterrestrial organisms may not have been able to replace or coexist with the homegrown species. 举例而言，如果在地球独力孕育出生命之后，火星微生物才来到地球，这些地外生物便可能无法取代原生物种，或与之共存。
- How do you come by that scratch on your cheek? 你脸上的抓伤是怎么来的？
