For one thing, I firmly believe that reading can increase our knowledge. For another, reading helps us to calm down when we feel upset.
首先，我坚信阅读能增加我们的知识。另一方面，当我们感到沮丧时，阅读帮助我们平静下来。
As constant travelers and parents of a 2-year-old, we sometimes fantasize about how much work we can do when one of us gets on a plane, undistracted by phones, friends, or movies.
作为经常旅行的人，以及两岁孩子的父母，我们有时会想象，当我们其中一人登上飞机，不被手机、朋友或电影分心时，能做多少工作。
Mobile technology means we can hold the world in our hands. However, when it comes to technology and health care, opportunities and challenges come together.
移动技术意味着我们可以把世界掌握在自己手中，然而，当涉及到技术和医疗保健，机遇和挑战同时出现。
We can achieve a lot when we learn to let our differences unite, rather than divide us.
当我们学会让分歧使我们团结起来，而不是分裂时，我们可以取得很多成就。
I am sure you all know from physics class about how light moves in microscopic ways and that we can only see light when the wavelength of that light is in a specific range.
我相信，你们在物理课上都学过光是如何以微观的方式运动的，以及只有在光的波长在特定的范围内时我们才能看到光这一事实。
Only when all of us join efforts to eliminate pollution at all levels can we expect to have a better environment.
只有当我们所有人共同努力消除各种污染时，我们才能期望有一个更好的环境。
That's a real critical issue--what is the range of temperature or climate conditions to which we can adapt, and when do we exceed those?
那是一个真正关键的问题——我们可以适应的温度或气候条件的范围是什么，我们什么时候会超过这些范围？
As long as the older forms of knowledge are stored somewhere in our networks, and can be found when we need them, perhaps they're not really forgotten.
只要旧形式的知识储存在我们的网络中，并能在我们需要的时候被找到，或许它们就不会被真正遗忘。
Based on excavations, we can know the layout of the houses and the location of the graves, but we're only guessing when we tried to say why they did it that way.
根据挖掘的情况，我们可以知道房子的布局和坟墓的位置，但是我们试图解释他们这样做的原因时只是瞎猜而已。
We must find out when Karl is coming, so we can book a room for him.
我们必须知道卡尔什么时候来，这样我们才能给他订个房间。
When we do this, we can see this probability distribution curve that has the maximum probability of finding an electron here.
当我们这样做时，我们可以看到该概率分布曲线在此处找到电子的最大可能性。
When we receive an urgent and actionable SMS like this one, we can immediately create a report.
当我们收到这样一条紧急而又可行的短信时，我们能够立刻创建报告。
When we always stay with the same people, how can we break down the barriers which prevent us from getting to know people with different ideas?
当我们始终和相同的人待在一起，我们怎么能打破阻止我们去了解有不同想法的人的壁垒呢？
Only when we react to emergencies in life calmly, can we solve problems in a better way.
只有当我们冷静应对紧急状况时，我们才能更好地解决问题。
We know who we can depend on in our lives and turn to them when we need help.
我们都知道在我们的生活中谁可以信赖，当我们需要帮助的时候，我们就可以向他们求助。
The psychologist alone can ask such questions: Why do we smile when pleased and not scowl?
只有心理学家才会问这样的问题：为什么我们高兴时微笑，而不是怒容满面？
For example, new survey techniques have enabled us to detect population increases when the starfish are quite young, so we can be ready for them.
例如，新的调查技术使我们能够在海星很小的时候就发现它们的数量增加，所以我们可以为它们做好准备。
When we consider IQ, we find that this is the reason that can explain about 50% of the difference.
当我们考虑到智商的时候，我们发现这是能够解释大约50%差异的原因。
When we're talking with others, we can nod at the speaker from time to time to show that we're listening attentively.
当与他人交谈时，我们可以不时向说话者点头，以表明我们正在认真倾听。
"Only when the Tooth Fairy buys the lost tooth from us, can we grow a new tooth." Logan nodded.
“只有牙仙把掉的牙买回来，我们才能长出一颗新牙。”洛根点了点头。
When we feel offended by someone, we can tell him to his face instead of complaining behind his back.
如果你觉得被冒犯了，可以当面告诉对方，而不是在他背后抱怨。
When we trust in the hands of a greater power, our life's work can be truly beautiful.
当我们相信更强大的力量，我们的生活才会真正美丽。
When children are little we make them read aloud so that we can be sure they "know" all the words they are reading.
当孩子还小的时候，我们会让他们大声朗读，从而确定他们“认识”他们所读的所有单词。
Joy and sadness are experienced by people in all cultures around the world, but how can we tell when other people are happy or despondent?
快乐和悲伤是世界上不同文化的人都会经历的，但我们怎样得知别人是快乐还是沮丧呢？
We can see differences when we pay attention to the way words are used.
当我们注意单词的使用方式时，我们可以看到差异。
We can take a cloth bag when we go shopping.
去购物的时候，我们可以带一个布袋。
What can help us when we fail?
当我们失败时，什么可以帮助我们？
We can collect rainwater when it rains heavily, and use it to water plants.
我们可以在下大雨时收集雨水，用来浇灌植物。
On the one hand, we can share our hopes, dreams or problems when we communicate with them.
一方面，当我们与他们交流时，我们可以分享自己的希冀、梦想或疑问。
On the one hand, we can share our hopes, dreams or problems when we communicate with them.
一方面，当我们与他们交流时，我们可以分享自己的希冀、梦想或疑问。
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