一种理论是,它们是由于人类的猎杀而灭绝的。
One theory is that they were hunted to extinction by humans.
甚至有一种理论认为手机要对蜜蜂的消失负责!
There's even one theory that mobile phones should be responsible for the disappearance of bees!
另一种理论是,梦让我们能够解决现实生活中无法解决的问题。
Another theory is that dreams allow us to solve problems that we can't solve in real life.
现在我们来看看另一种理论,狩猎理论的替换,气候变化理论。
Now let's look at another theory, an alternative to the hunting theory, the climate change theory.
最后一种理论很有吸引力,因为它给解释封闭海域(如日本海)带来了一些希望。
This last theory is attractive because it gives some hope of explaining the enclosed seas, such as the Sea of Japan.
另一种理论是,板块下沉部分的密度大于周围较热的地幔,将板块的其余部分拉在后面。
An alternative theory is that the sinking part of the plate, which is denser than the hotter surrounding mantle, pulls the rest of the plate after it.
这似乎是合理的,但它仍然是一种理论,这个理论是基于我们对陆生动物的更全面的认识。
Plausible as this seems, it is still a theory and based on our more comprehensive knowledge of land-based animals.
有一种理论认为,两足动物的进化与核心家庭有关:一夫一妻制的父母合作照顾他们的后代。
One theory is that bipedality evolved in conjunction with the nuclear family: monogamous parents cooperating to care for their offspring.
越来越多的人支持这样一种理论,即移民发生得要早得多,是沿着阿拉斯加沿海路线,沿西北海岸而下通过海路进行的。
There is growing support for the theory that migration took place much earlier, by sea, following a coastal route along Alaska and down the northwest coast.
最近的发现有力地支持了这样一种理论,即银河系中心,和宇宙中估计存在的1000亿个其他星系中的许多里有一个黑洞。
Recent findings lend strong support to the theory that a black hole lies at the center of the Milky Way and of many of the 100 billion other galaxies estimated to exist in the universe.
有一种理论将其归结为经济使然。
我们将带着一种理论的倾向性来阅读本周的内容。
我们开始纯粹把它当作一种理论来研究。
一种理论将这个问题归咎于大脑不能再生新的神经元细胞。
有一种理论认为,中东人民将他们的工具和技术带到了欧洲。
One theory is that peoples from the Middle East brought their tools and technologies to Europe.
他取得了这样一种理论,试图参照达尔文的《物种起源》而非照搬它。
What he has arrived at is a theory that tries to parallel Darwin's "On the Origin of Species" but not repeat it.
一种理论认为我们的记忆可以与听到的一个相似的声音所融合。
One theory has it that our memory can be jogged by hearing a word that sounds similar.
另一种理论认为其它动物在震前能感觉到人类察觉不到的弱震。
Another theory holds that other animals can sense weak shocks before an earthquake that are imperceptible to humans.
有一种理论认为闻食物会欺骗大脑,让它误认为你实际在吃东西。
One theory is that sniffing the food tricks the brain into thinking you're actually eating it.
对于死亡率有一种理论是,也许他们寻求治疗太晚——生病七天内应该看医生。
One theory for the deaths is that perhaps they sought treatment too late - falling sick an average of seven days before seeing a doctor.
有一种理论认为“棕色云”让低层大气变冷,从而掩盖了温室气体的一些致暖效应。
The theory was that 'brown clouds' were cooling the lower atmosphere and therefore masking some of the warming effects of greenhouse gases.
另一种理论提出粳稻和籼稻这两种主要的水稻亚种是在亚洲不同地区分别被培育的。
Another theory proposes that the two major sub-species of rice - Oryza sativa japonica and O. sativa indica - were domesticated separately and in different parts of Asia.
因为确实有一种理论认为艺术的主要,功能是提供帮助与安慰,因为世界纷繁而痛苦,-对的。
Because certainly there is a theory that art's main function is to provide succor and solace in this "vail of tears". -right.
其中一种理论是:这些绅士们,小时候进伊顿公学之类的私立学校;惩戒时,就是挨鞭子。
One is that these gentlemen who went to private schools like Eton were whipped for punishment as kids.
但是超弦理论已活跃了几十年,却没有什么突破。超弦理论的失败激励了另一种理论的倡导者。
But string theory has been around for decades without delivering the goods, and that failure has encouraged the protagonists of an alternative explanation to push themselves forward.
最为接近的一种理论认为,这是由于将鸡蛋排出输卵管的正常肌肉运动出现功能异常所造成的。
The most likely suggests that the normal rhythmic muscular action, or peristalsis, that moves a developing egg down the oviduct malfunctions in some way.
有一种理论认为,在动物群体中模仿可以把个体联系在一起以增加安全感——模仿是一种社会粘合剂。
One theory is that mimicry somehow promotes safety in groups of animals by binding them together — that mimicry is a kind of social glue.
有一种理论认为,在动物群体中模仿可以把个体联系在一起以增加安全感——模仿是一种社会粘合剂。
One theory is that mimicry somehow promotes safety in groups of animals by binding them together — that mimicry is a kind of social glue.
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