Humans cannot survive without a fair knowledge of the actual world.
没有对现实世界有相当多的了解，人类就无法生存。
Humans, as we know, have always lived in groups; without this arrangement, our species would have died out long ago.
我们知道，人类一直是群居的；如果没有这种安排，我们的物种很早之前就灭绝了。
The robotics revolution is set to bring humans face to face with an old fear—man-made creations as smart and capable as we are but without a moral compass.
机器人革命注定使人类直面一种长久以来的恐惧——与我们一样聪明能干但没有道德规范的人造生物。
Humans can not make progress without dreams.
没有梦想，人类就不能进步。
Without bees, humans would starve.
没有蜜蜂，人类将饿死。
Another is whether a set of bacteria is essential for basic human physiology-in other words whether humans really are symbiotic creatures who would die without their collaborators.
另一个问题是，一组细菌对人体的基础生理是否是必不可少的；换言之，人类是否真的是没有共生菌就会死的共生体。
Most humans cannot survive without food for 50 days.
大多数人类没有食物是无法生存50天的。
The researchers say this provides a potential explanation for how the brains of humans and animals can quickly and accurately determine focus error without guessing and checking.
研究人员称这可以为人类及动物的大脑不用猜测检测机制却仍能快速精确地确定焦距提供一种可能的解释。
What use would it be knowing the genome sequence of humans and other organisms, for instance, without the technology and expertise needed to exploit this knowledge?
例如，如果没有了探索基因序列的技术和专家，那人类知道自己和其他有机体的基因序列还有什么用处呢？
That's something we humans have trouble enough with, let alone a single-celled organism without a neuron to call its own.
这对我们人类是够麻烦的，让一个没有神经的单细胞生物拥有自己的意愿。
Humans can survive for quite a while without food but only a few days without water.
人不吃东西还能存活一段时间，不喝水就只能坚持几天。
Several astronomers have said that there's no evidence for the Planet X theory, and that if the planet did exist, humans would be able to see it even without a telescope.
几个宇航员已经说过，没有证据支持X行星理论，而且如果真的存在这样一颗行星的话，那么人们即使不用望远镜也能看到它。
Here you can see a few illustrated examples what humans' life could look like without science, inventions and engineering.
在这儿你能够看见一些范例，人类的生活没有科学、发明和工程学会像什么样的。
Can you think of ways that humans communicate without using words?
你想到人类除了文字还会用什么方法交流吗？
Without the name it will be nearly impossible for the humans to find the file again.
没有名字，它将会几乎不可能让人类再一次找文件。
That is to say, when humans evolved without a particular switch, the absence of that switch allowed the brain to grow further.
也就是说，人类在进化中丢弃了这个特殊的开关，而这个缺失的开关让大脑能发育更高级。
Unlike any other creature on this planet, humans can learn and understand, without having experienced.
人类和在这个星球上的其他生物不同，人类能够在没有自我经历的情况下学习和理解。
The infection is fatal to humans without preventative treatment.
如果不采取预防治疗，这种感染对于人类是致命的。
From these observations and previous studies of erv, the virus has shown it can be transmitted to humans, without resulting in illness.
对ERV的这些观察和以往的研究显示，病毒可传播给人类，而不造成疾病。
So why did early humans leave home without a better toolkit?
那么，为什么人类离开古老的家园却不携带更好的工具包呢？
Barefoot running is what it says on the tin. It's running without expensive trainers because that's how humans have run for thousands of years.
赤脚跑顾名思义，就是不穿那些昂贵的跑鞋跑步，原因在于人们几千年来都以此为乐。
Sonic booms produced by aircraft flying supersonic at altitudes of less than 100 feet, creating between 20 and 144 pounds overpressure, have been experienced by humans without injury.
飞行在低于100英尺的超音速飞机制造的音爆，造成的20到144磅的超压，没有对人体造成伤害。
The first took humans to Australia about 50, 000-60, 000 years ago, when rambling the length of Indonesia without getting your feet wet was possible.
第一波可能在50,000- 60,000年前漫无目的地横跨漫长的印尼岛后将人类带入澳大利亚。
The extreme supermoon has passed without disaster. But around the world people took amazing pictures of the largest moon humans have seen since 1993.
最大的超级月亮终于在人们的议论中如期而至。世界各地的人拍下了令人称奇的超级大月亮的照片，这是自1993年人类见过的最大月亮。
Without these scavenging animals, the rotting carcasses they used to feed on May pose serious disease risks to humans, Blackburn said.
Blackburn说，没有了这些食腐动物，那些腐烂的尸体可能对人类产生严重的疾病威胁。
There is, however, an alternative growing in popularity for software-to-software access of data, without involving humans.
不过，另一种方法，即数据的软件到软件(soft ware - to - soft ware)访问，正日渐流行，这种方法不需人工干涉。
So scientists will need to determine whether lower doses of the drug can offer humans anti-ageing effects without compromising their immune systems, Kaeberlein says.
因此科学家需要去测定低剂量药物是否有减缓人衰老的效果，在没有对免疫系统造成损害的情况下，Kaeberlein说到。
So scientists will need to determine whether lower doses of the drug can offer humans anti-ageing effects without compromising their immune systems, Kaeberlein says.
因此科学家需要去测定低剂量药物是否有减缓人衰老的效果，在没有对免疫系统造成损害的情况下，Kaeberlein说到。
应用推荐