Assuming that someone with no experience could exist, then we could say that they had no knowledge.
假设一个没有丝毫经验的人能够存在，那么他是没有知识的。
From there it was a simple matter to calculate where such worlds could exist within our solar system.
我们很容易就能计算出太阳系中的哪些地方会存在这样的星体。
The findings open the possibility that life could exist in other remote parts of the universe, researchers said.
研究学者表示，这个发现显示可能宇宙其他遥远地方可能有生命体的存在。
That's the area where scientists believe water could exist, in liquid form, making a planet potentially habitable.
科学家们相信，在这片区域中，水可以液态形式存在，这使得一个行星可能适于人类居住。
We are appalled that such conditions could exist among us.
我们中间居然存在如此恶劣的生活状况，真令人不胜惊愕。
General relativity predicted that black holes could exist, but do they?
广义相对论预言了黑洞的存在，那么它们到底存在吗？
There could exist no 'definite method' for solving all mathematical questions.
不可能存在一种“机械的过程”来解决所有数学问题。
Conclusion JAK2 exon 12 mutations could exist in JAK2V617F-negative PV patients.
结论JAK2V 617 F点突变阴性的PV患者中存在JAK2外显子12突变。
That means liquid water could exist at the surface, raising the possibility for life.
这意味着，它的表面或许能够存在液态水，从而提高了存在生命的可能性。
White holes have never been observed, though general relativity predicts they could exist in principle.
人们从未观测到过白洞，然而广义相对论认为白洞原则上是存在的。
By classifying cell phones as a possible carcinogen, they also seem to be tacitly admitting a mechanism could exist.
当把手机归类为致癌接触以后，他们好像也默认了这个致癌机制的存在。
Philosophers argue about whether or not such a creature could exist in theory, and on the whole they are pretty undecided about it.
哲学家们为这种物质在理论上是否存在而争论，但最终还是没有达成一致共识。
But astrophysicist Stephen Hawking theorizes that life could exist out there that we can't even imagine: life that is not carbon-based.
但是，按照天体物理学家斯蒂芬·霍金的理论，生命存活的环境是超出人类想象的：它不以碳为基础。
Six hundred feet (183 metres) below the ice where no light shines, scientists had figured nothing much more than a few microbes could exist.
在冰层600英尺(183米)下没有任何光亮，科学家以前认为只有微生物才可以在那里生存。
The sun can be said to be the source of nearly all energy, and in the absence of the sun's heat and light, no life could exist on earth.
可以说太阳是所有能量的来源。因此，倘若没有太阳的光和热，地球上就不可能有生命。
So it's not entirely impossible that free-floating planets have hot cores, cold surfaces, and an intermediate layer, where water could exist in some fluid form.
所以，存在一种可能，不受约束的漫游星有炙热的内核，寒冷的表层，和一个特别的中间层，在那水是液态的。
Under the current laws of physics, it is difficult to understand how it could exist. And this is probably the main reason scientists dismissed it for so long.
就现有的物理学定律，我们很难理解球状闪电存在的原因，而这可能也是长期以来科学家忽视球状闪电的主要原因。
In the chapter 3, we study why a bank could exist and the problem of instability of micro-structure to introduce a question why a bank needs its reputation in the industry.
第3章从银行为什么存在的问题出发，分析了银行微观结构的不稳定，从而引出为什么银行需要声誉的问题。
Saltiness lowers the temperature at which water freezes. This means seasonal salty liquid water could exist in mid-latitude regions of Mars, despite the chilliness of the planet's ‘warm’ season.
盐分会使得水凝结成冰的温度降低，这也就意味着，尽管在火星上所谓“温暖”的时期里气温也低得吓人，但在这个星球的中纬度地区，可能有含盐的液态水季节性的存在。
Saltiness lowers the temperature at which water freezes. This means seasonal salty liquid water could exist in mid-latitude regions of Mars, despite the chilliness of the planet's 'warm' season.
盐分会使得水凝结成冰的温度降低，这也就意味着，尽管在火星上所谓“温暖”的时期里气温也低得吓人，但在这个星球的中纬度地区，可能有含盐的液态水季节性的存在。
Traveling on a nearly circular, 229-day orbit around both host stars, the planet lies outside the system's habitable zone—the region where liquid water, and thus life as we know it, could exist.
它的运行轨道为近似的圆形，以229天为周期，围绕着两个恒星作轨道运行，这个行星位于这个系统的可居住区之外——所谓可居住区，那里有液体水，正像我们所知道的那样，那里可能会有生命的存在。
Four planets were already known around the star, with two lying near the inner and outer edges of the habitable zone, where liquid water - and therefore potentially life - could exist on its surface.
已有四颗围绕该恒星的行星被发现，其中两颗分别位于宜居区的两端。宜居区是使生命得以可能的液态水能存在的区域。
Four planets were already known around the star, with two lying near the inner and outer edges of the habitable zone, where liquid water - and therefore potentially life - could exist on its surface.
已有四颗围绕该恒星的行星被发现，其中两颗分别位于宜居区的两端。宜居区是使生命得以可能的液态水能存在的区域。
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