Silences may be thoughtful, or they may be empty when a person has nothing to say.
沉默可能是深思熟虑的表现，也可能是一个人无话可说时的空洞。
In an interview with the Paris Review Hughes speculated that when a person puts pen to paper, "you meet the terrible resistance of what happened your first year at it, when you couldn't write at all".
在接受《巴黎评论》的采访时，休斯推测，当一个人动笔在纸上写字时，“你会遇到你第一年所经历的严重阻力，那时你根本不会写字”。
When a person shouts, he cannot pronounce his words well.
一个人大喊大叫时就不能好好发音。
When a person is born without legs, there are plenty of things that are difficult to do.
当一个人生来就没有腿，有很多事情做起来都很困难。
When a person visits a foreign country, it is important to know how to ask for help politely.
当一个人到国外旅游时，知道如何礼貌地寻求帮助是很重要的。
Scientists say that sleepwalking may sometimes happen when a person is sick, has a fever, is not getting enough sleep, or he has much stress.
科学家表示，一个人生病、发烧、睡眠不足或压力过大时，有时会出现梦游症状。
A high-tech test that can tell when a person is not telling the truth sounds too good to be true.
一项高科技测试可以判断一个人是否在说谎，听起来好得令人难以置信。
When a person reaches thirty, his understanding of the real world should be closer to The Origin of Species than to Tom and Jerry.
一个人到了三十岁，对现实世界的理解，应该更接近《物种起源》而不是《猫和老鼠》。
When a person stops breathing, oxygen levels in the blood decrease.
当人的呼吸暂停时，血液中的含氧量会降低。
Dehydration sets in when a person has lost 2 percent of his or her body weight.
当人流失了自身重量百分之二的水分时，显示为脱水。
When a person falls in love, a network of 12 regions of the brain are activated.
当一个人坠入爱河，联系大脑中12个区域的网络就被激活了。
When a person is hanged, the blood will accumulate in its lower part: legs and feet.
一个人被吊死，血液自然聚积到他身体的最低部：腿或者脚。
When a person receives the email, they must detach the spreadsheet, edit it, and save it.
当一个人收到电子邮件时，他们必须分离电子表格，编辑它并将其保存。
When a person is stressed their heart rate becomes consistent and variability is minimized.
当人有压力时他们的心率变得前后一致，可变性降到了最低。
When a person is brought to an American court, he is presumed innocent until proven guilty.
当一个人被带到美国的法庭时，在证明有罪之前，会先假设他是无罪的。
The worst time to give advice about driving, I've learned, is when a person is driving.
于是我明白了，提驾驶方面的建议，最不恰当的时机就是，对方在开车时。
When a person is brought to an American court, he is presumed innocent until proven guilty.
当一个人被带到美国的法庭时，在证明有罪之前，会先假设他是无罪的。
When a person learns something new, certain synapses are strengthened relative to others.
当一个人学到新知识的时候一部分特定的突触相对地被增强了。
Brain activity can rise a lot more than this when a person simply looks at images on a screen.
当一个人仅仅看一看屏幕上的图像时，脑活力增强的幅度还要大。
This is often a type of dream called a 'lucid dream', when a person knows they are dreaming.
这一种叫做“清晰梦境”，即人们知道此时自己正在做梦。
When a person is infected with HIV, the virus slowly begins to destroy that person's immune system.
当一个人感染了HIV，病毒就慢慢的开始破坏这个人的免疫系统。
They also spend much less time making eye contact, at least when a person without power is talking.
他们花在目光接触上的时间也更短，至少在和没权的人说话时是这样。
When a person is needed, BPM should deliver the right information to the right person at the right time.
在需要涉及人员时，BPM会在正确的时间将正确的信息交付给正确的人员。
Addiction occurs when a person gets hooked on the feeling associated with a behavior. In this case love.
当一个人着迷与行为伴随的感受，成瘾便发生了，爱情也是如此。
When a person performs an act of kindness the brain produces dopamine, associated with positive thinking.
当一个人做了好事之后，他的大脑会产生多巴胺，同时会进行积极的思考。
Inflammation of brain tissue that occurs when a person is depressed might contribute to dementia (posed).
人身处抑郁时发生的脑组织炎症可能会诱发老年痴呆症。
First, she says, it must address the more difficult question of when a person can really be said to be dead.
首先，必须对何时可以说一个人真正地死亡提出更加困难的问题。
When a person is lying they tend to fire of a combination of nonverbal and vocal signals around the same time.
当一个人说谎的时候，他们通常会在同一时间激起非语言和声音信号的结合。
When a person passes away, there's often an urge to define their legacy, and find a way in which it will endure.
在一个人逝去的时候，常会产生一种界定其遗产并设法使之永存的动力。
When a person passes away, there's often an urge to define their legacy, and find a way in which it will endure.
在一个人逝去的时候，常会产生一种界定其遗产并设法使之永存的动力。
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