一些科学家已经表示，担心这种疾病可能会传染给人类。
Some scientists have voiced concern that the disease could be passed on to humans.
一些科学家相信我们可以做到。
他遭到教会甚至一些科学家的反对。
一些科学家说这是人类成功的关键。
Some scientists say that it was the key to the success of mankind.
一些科学家说，感冒时吃药实际上会对你有害。
Some scientists say taking medicines when you have a cold is actually bad for you.
一些科学家假定，小行星撞击地球导致了恐龙的灭绝。
Some scientists hypothesize that the extinction of the dinosaurs resulted from the effects of an asteroid collision with Earth.
根据一些科学家的说法，这种情况的发生有两个原因。
一些科学家提出了向北极平流层释放气溶胶喷剂的概念。
The concept of releasing aerosol sprays into the stratosphere above the Arctic has been proposed by several scientists.
一些科学家的研究发现，海豚之所以很少睡觉，是因为它们很愚蠢。
According to some scientists' research findings, dolphins seldom sleep because of their stupidity.
一些科学家并不否认外星人的存在，但是需要进一步的证据来证实。
Some scientists don't deny the existence of aliens, but further evidence is still needed to confirm it.
现在，一些科学家担心这样的饥荒可能会再次发生，但规模会大得多。
Now, some scientists are worried that such a famine could happen again, but on a much wider scale.
虽然一些科学家可能会对这些新奖项有所抱怨，但有两件事情似乎很清楚。
As much as some scientists may complain about the new awards, two things seem clear.
一些科学家提出了一个理论：当地面很滑的时候，或许大风就可以移动岩石。
Some scientists theorized that perhaps when the ground is slippery the high winds can then move the rocks.
因此，一些科学家推断，地球早期的大气与现在的不一样，主要由氢、甲烷和氨构成。
Therefore some scientists postulate that the Earth's earliest atmosphere, unlike that of today, was dominated by hydrogen, methane, and ammonia.
一些科学家怀疑传统知识的价值，因为北极人所拥有的传统知识追溯起来并不足够悠久。
Some scientists doubt the value of traditional knowledge because the occupation of the Arctic doesn't go back far enough.
一些科学家认为，许多种类的恐龙的新陈代谢更像温血哺乳动物，而不是冷血爬行动物。
Some scientists contend that many species of dinosaur had a metabolism more like a warm-blooded mammal's than a cold-blooded reptile's.
尽管有许多证据表明鸟类是从陆生兽脚亚目恐龙进化而来的，但一些科学家仍然表示怀疑。
Although many lines of evidence indicate that birds evolved from ground-dwelling theropod dinosaurs, some scientists remain unconvinced.
一些科学家质疑这样的假设，即在自然生态系统中，外来物种的出现是绝对不会被接受的。
A number of scientists question the assumption that the presence of alien species can never be acceptable in a natural ecosystem.
一些科学家推测，火星在早期很长时间里可能都有以河流、湖泊，甚至海洋装点着它的表面。
Some scientists speculate that Mars may have enjoyed an extended early period during which rivers, lakes, and perhaps even oceans adorned its surface.
一些科学家正在研究从南极洲收集冰山的可能性。据估计，南极洲拥有地球上最大的淡水储备。
Some scientists are examining the potential for harvesting icebergs from Antarctica, which is estimated to have the biggest reserves of fresh water on the planet.
一些科学家猜测，这些猴子用千足虫擦自己的身体，是因为这样做有助于保护它们免受蚊子叮咬。
Some scientists hypothesize that the monkeys rub their bodies with the millipedes because doing so helps protect them from mosquitoes.
然而，一些科学家认为，虽然我们可以让机器人像人一样行动，但却很难让它们真正地像人一样思考。
However, some scientists think although we can make robots move like people, it will be difficult to make them really think like a human.
事实上，一些科学家认为，人类历史不仅仅受到全球气候变化的影响；在某些情况下，它还受到全球气候变化的推动。
Indeed, the human history has not been merely touched by global climate change, some scientists argue, it has in some instances been driven by it.
很难理解为什么它们不会受到影响，而恐龙却因为残疾而无法生存，尤其是如果恐龙像一些科学家认为的那样是温血动物。
It's hard to understand why they would not be affected, whereas dinosaurs were left too crippled to cope, especially if, as some scientists believe, dinosaurs were warm-blooded.
然而，在20世纪80年代后期，一些科学家在美国西部的内华达探索魔鬼洞，这基本上是一个广阔的充满水的洞穴，并且远离海洋。
However, in the late 1980s, some scientists were exploring Devil' s Hole, which is basically an extensive water-filled cave, far from the ocean, in Nevada2, in the western United States.
一些科学家拯救了这些鱼。
一些科学家担心这种光会影响我们的健康。
Some scientists are worried about how this light affects our health.
现在，一些科学家提出了一些不同的想法。
Now, some scientists have come up with some different ideas.
这种再生产能力让一些科学家感到担忧。
This ability to reproduce is making some scientists worried.
一些科学家甚至将这些会唱歌的动物比作音乐家。
Some scientists even compared these singing animals to musicians.
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