有越来越多的证据表明，人类的存在使地球发生了巨大的变化，地质史上的一个新时代已经开始了——即人世时代，一个受人类影响的新时代。
There is growing evidence that the presence of humans has altered the Earth so much that a new Epoch of geologic history has begun—the Anthropocene Epoch, a new human-influenced Epoch.
一开始你可能不会这样认为，因为太阳系里和彗星发生过碰撞的行星都比火星还远，在那样的轨道上水永远是以冰的形式存在。
On first blush, you might think not: the planet where the comet or comets came to grief is farther out than Mars, in an orbit where water would be permanently frozen.
因此，它们学着理解各种事物发生的概率，学着弄清用户的偏好和结果的代价，也许更重要的是，它们开始能意识到自己的存在。
So they learn to understand the probabilities of various things happening, they learn the preferences [of users] and costs of outcomes and, perhaps most important, they are becoming self-aware.
视频图像显示被麻醉的大脑从中脑部分开始发生变化。中脑中大量存在着某类神经末梢，这类神经末梢能接收名为GABA(伽马氨基丁酸)的神经递质。
The images show that changes in the anesthetized brain start in the midbrain, where certain receptors for a neurotransmitter called GABA are plentiful.
如果开始的时候 /etc/passwd文件并不存在，那么会发生什么情况呢？
What happens if the /etc/passwd file didn't exist to begin with?
与此同时，你们试着去理解在地球上正在发生什么，因为你们看见旧的方式仍然还存在，然而你们知道的改变正在开始显现。
Meanwhile, you try to make sense of what is happening on Earth as you see the old ways still in place, yet you hear of changes that are starting to manifest.
民意测验现在开始显示，不管责怪谁，无论发生了什么事情，高失业率可能是存在的。
Opinion polls are now beginning to show that, whoever is to blame and whatever happens from now on, high unemployment is probably here to stay.
还没有看到并不意味着它不存在或者现在还没有开始，或者还没有发生并且以指数的方式呈现你们的美好未来。
Not seeing it, does not mean it did not or is not happening right now or will not happen and grow exponentially in your future.
当这发生的时候，你们就进入了一个空的地带(null zone)，在那里，你们的旧实相已经不再存在，或者说已经被根本的改变了，而同时你们的新实相还没有开始存在。
And when this occurs you enter a null zone in which your old reality no longer exists, or has changed radically, while your new reality has not yet come into existence.
但同时，9.11事件的发生，无疑给正处于上升阶段的民用航空业当头一棒，许多人从狂热中清醒过来，开始正视航空旅行所存在的风险。
But meanwhile the 9.11 is the big hit to this industry which is developing fast and many people start to realize that the risk of the air travelling.
世纪80年代以后，国际教育思想发生了重大变化，人们开始关注人本身，提出对人的存在的终极关怀。
Since the 1980s of the 20th century, there have been significant changes in the educational ideology throughout the world. The human being and his ultimate existence have been people's concern.
随着两测量点间距的变大，这种形式的轨道发生变化，开始出现不同类型的轨道，它们是两测量点单独存在时所对应轨道竞争的结果。
The tip track is changed by the changing larger distance between the two measurement point. The different tracks are displayed because of two measurement point compete with each other.
随着两测量点间距的变大，这种形式的轨道发生变化，开始出现不同类型的轨道，它们是两测量点单独存在时所对应轨道竞争的结果。
The tip track is changed by the changing larger distance between the two measurement point. The different tracks are displayed because of two measurement point compete with each other.
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