This normal human reaction is used to protect us by signaling danger and preparing us to deal with it.
人类的这种正常反应是用来保护自身的，这种反应向我们发出危险信号，让我们做好应对危险的准备。
This machinery is so precise that a human hair couldn't even pass between the heads and spinning platters, yet it all works in terrific speeds.
这台机器是如此精确，以至于人类的头发甚至不能从头部和旋转的磁盘之间穿过，但它的运转速度却是惊人的。
If you think about it though, the core problem with this sixth mass extinction is human interference.
如果你仔细想想，这第六次大灭绝的核心问题是人类的干扰。
For this miniscule chameleon is so small that it can sit on a human thumbnail with room to spare.
因为这种微乎其微的变色龙是如此之小，以至于它爬在人类的手指甲上还有多余的空间。
Of course, like every other environmental issue today, this is playing out against the background of global warming and human interference with natural ecosystems.
当然，就像今天的其他环境问题一样，这是在全球变暖和人类干涉自然生态系统的背景下发生的。
Now, much of the research in this area is motivated by the search for animal analogues, or parallels to human cognitive processes.
现在，这一领域的许多研究都是为了寻找与人类类似的动物，或与人类认知过程的相似之处。
This is the human tragedy that the movie is about.
这就是电影体现的人性悲剧。
Human language is productive, an open-ended communication system, whereas no other communication system has this property.
人类的语言是多产的，是一个开放的交流系统，而其他交流系统都没有这种特性。
This country is short of natural resources but rich in human resources.
这个国家缺乏自然资源，却有着丰富的人力资源。
In light of this, it is probably best to look later in the process and ask human resources for help in navigating it.
有鉴于此，或许最好的方式是在招聘后期进行考察，并要求人力资源部门帮忙在网上搜索相关信息。
This basic approach is limited in the range of numbers that it can express, but this range will generally suffice when dealing with the simpler aspects of human existence.
这一基本方法所能表达的数字范围有限，但在处理人类生存较简单的方面时，这一范围通常是足够的。
This is, as far as we're concerned, a real retrograde step for human rights.
对我们而言，这是在人权问题上真正倒退的一步。
This food is not fit for human consumption.
这种食物不适合人食用。
Mars is this sort of human, flabby torso—it's sympathetic, but it's a different portrayal of wars.
马尔斯是这种人，有着赘肉的躯干——这让人同情，但这是对战争的不同描写。
The original quote about human nature went like this: "To err is human, to forgive, divine."
关于人性的原话是这样写的：“犯错是人的行为，而宽恕是神的事情。”
In biology this week, the topic is Human Body.
本周生物学的主题是人体。
Arguably, this is so because the theories and conceptual constructs of the social sciences are especially accessible: human intelligence apprehends truths about human affairs with particular facility.
可以说，这是因为社会科学的理论和概念结构特别容易理解：人类的智力对人类事务的真相具有特殊的理解能力。
Our second study is about music, for this study researchers play music to babies through speakers located on either side of a human face.
我们的第二个研究是关于音乐的，在这项研究中，研究人员通过位于人脸两侧的扬声器向婴儿播放音乐。
This is an organism that is potentially deadly to the continued survival of human beings.
这是一种对人类持续生存具有潜在致命威胁的有机体。
This is because the human brain is biased to dwell on negative events.
这是因为人类的大脑偏向于记着负面事件。
Such behavior is regarded as "all too human", with the underlying assumption that other animals would not be capable of this finely developed sense of grievance.
这种行为被认为“太人类化了”，其言下之意是，其他动物不可能有这种微妙的愤懑感。
This trend towards dealing with extraterrestrials as nearly equals, is encouraging progress for the human race.
这种以近乎平等的态度对待外星人的趋势，正鼓励着人类种族的进步。
Good morning and welcome to this lecture on hair which is a part of the human biology course.
早上好，欢迎参加关于头发的讲座，这是人类生物学课程的一部分。
This electronic teacher is not a human-like robot walking around the classroom.
这个电子老师并不是一个在教室里走来走去的人形机器人。
There's a lot of frying going on at this particular place and this is something that's not typical of ancestral human diets.
在这个地方，有很多油炸食品，但这不是我们祖先的日常饮食。
Scientists say it may be five years before it is possible to test this medicine on human patients.
科学家们表示，在病人身上检测这种药物可能还需要5年时间。
This policy is far from being ideal, but it is at least an acknowledgement of the inadequacy of our language in treating half of human race equally.
这一政策并不理想，但至少承认了一个事实，即在平等对待他人方面，我们的语言仍有不足。
Human activity is the main reason for this, the United Nations (UN) said.
联合国表示，人类活动是造成这一现象的主要原因。
At the height of 8,000 meters, there is only 30% O₂ and the human body can only stand this height for a few days, so it is dangerous for humans to climb higher.
在8000米的高度，只有30%的氧气，人体只能处于这个高度仅几天，所以人类再往上爬是危险的。
At the height of 8,000 meters, there is only 30% O₂ and the human body can only stand this height for a few days, so it is dangerous for humans to climb higher.
在8000米的高度，只有30%的氧气，人体只能处于这个高度仅几天，所以人类再往上爬是危险的。
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