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。

They are produced by the human body.

它们是由人体产生的。

Water is important to the human body.

水对人体很重要。

How low gravity affects the human body.

低重力如何影响人体。

The human body needs such a balance, too.

人体也需要这样的平衡。

Doctors study the structure of the human body.

医生研究人体构造。

In biology this week, the topic is Human Body.

本周生物学的主题是人体。

The human body is a machine that can raise lots of interesting questions.

人体是一台能提出许多有趣问题的机器。

Scientists have obtained more evidence that plastic is finding its way into the human body.

科学家们已经获得了更多的证据来证明塑料正在进入人体内。

Thousands or even millions of tiny machines can be sent into the human body with specific tasks.

成千上万甚至上百万的微型机器可被送入人体执行特定的任务。

The human body is influenced by natural chemicals that produce "a sense of happiness", noted BBC News.

BBC 新闻指出，人体会受到能产生“幸福感”的天然化学物质的影响。

Agriculture differs from the medical science of the human body in that its environment is not a contained one.

由于农业发展不是处于一个封闭环境中，因此它和人体医学有所不同。

Now hair, whatever it is for and wherever it is on the human body, is composed mainly of a protein called keratin.

不管毛发是用来做什么的，也不管它在人体的哪个部位，它都主要由一种叫做角蛋白的蛋白质组成。

Classical Greek statues represented an idealization of the human body and were considered quite beautiful at the time.

古典希腊雕像代表了理想化的人体，这在当时被认为是相当美丽的。

This angelic laser begins slowly the gradual process of transforming the virginal human body to the essence of the soul itself.

这种天使般的激光慢慢地开始了一个渐进的过程，将贞洁的人体转化为灵魂的精髓。

Best of all, bananas provide different things that the human body needs! Bananas grow best in warm places that get lots of rain.

最重要的是，香蕉能提供人体所需的不同东西！香蕉在温暖多雨的地方生长得最好。

The human body can absorb no more than about a quart of water per hour, beyond which the brain can swell dangerously, says Dr. Goldfarb.

戈德法布博士称，人体每小时最多只能吸收大约一夸脱水，如果超过这个限度，大脑就会危险地膨胀。

For example, doctors did not have devices allowing them to go inside the human body to detect health problems or to perform delicate surgery.

例如，医生没有能够进入人体内检测健康问题或进行精细外科手术的设备。

In the cells of the human body itself, in the cells of every organ, of almost every type of tissue in the body, the same thing will happen eventually.

在人体自身的细胞中、在每个器官的细胞中、在人体几乎每一种组织中，同样的事情最终都会发生。

The history of torture is based on the human body being open to pain.

酷刑的历史，也是基于人类身体能够感受疼痛。

The human body doesn't discriminate between a big stressful event and a little one.

人类的身体不会区分大压力事件和小压力事件。

It makes people less tired, clears heat in the human body and helps people lose weight.

它使人不那么疲劳，清除体内的热量，帮助人们减肥。

It makes people feel less tired, clears heat inside the human body and helps people lose weight.

它使人感觉不那么累，清除体内的热量，帮助人们减肥。

The book focuses on six sections including zoology, the human body and botanics.

该书的主要内容包括生态、人体和植物等六大部分。

During the evolution of the human body, there are over 400 resident flora in our bowels.

在人体进化过程中，肠道内菌丛林立，常居菌种超过四百种。

An experiment in Japan found melatonine can lessen the harm done by radiation to the human body.

日本一项实验显示褪黑素能减轻辐射对人体所产生的危害。

Explore the human body.

探索人体。

Indeed, it's not just any old human body.

事实上，它也不完全是人类的躯体。

That's just not how the human body works.

因为这并不是人体工作的方式。

Even the human body itself emits radiation.

甚至人体本身也会发出辐射。