How did they react when they learned the news?
他们听到这个消息有什么反应？
When babies' expectations are violated in experiments like the ones performed with the cats, they react much like their animal friends.
和以猫为对象的实验一样，在实验中，当婴儿的期望被违反时，他们的反应和他们的动物朋友如出一辙。
How did they react to the decision?
他们对决定有什么反应？
They react differently to predators too.
它们对于捕食者的反应也不尽相同。
How will they react to the new work schedule?
他们对新工作时间表会有什么反应？
How did they react to the powerful Roman Empire?
对强大的罗马帝国的态度？
When you talking, they react to you in their own ways.
当你说话的时候，他们用自己的方式回应你。
Plants do too and they react to these chemicals in the air.
植物也能闻并会对空气中的化学物质做出反应。
I can tell by looking at someone which foods they react to.
我可以通过观察判断他吃什么食物。
Now, you are about to see how they react in those situations.
现在，您将看到在那些情况下他们如何反应。
They react to how they are treated and always respond appropriately.
它们总能恰如其分的对别人对自己的行为作出回应。
They react to social ups and downs as if their fates depended upon them!
他们对社交中的起起落落表现得好象自己的命运取决于那些似的！
But when you share a story with your friends, you care a lot more how they react.
但是当人们和朋友们分享一个故事时，他们更在乎对方的反应。
Let's imagine the user has no previous knowledge of either desktop. How will they react?
假设用户先前对这两种桌面界面一无所知，第一次接触这两种界面，用户会有怎样的反应？
When we use metals, it is important to know how they react with different substances.
当我们使用金属时，知道它们与不同的物质是如何反应的是很重要的。
Malaria parasites are detectable when they react to the treatment on the glass (Giemsa stain).
疟疾寄生虫可以通过它们对姬姆色素滴定的反应来检测。
Instead, they react to what they see in their own lives and the lives of people they know.
相反，他们根据自己和人们的生活的所见所闻作出反应。
They react by adding other chemical agents at the double bond to form derivatives or polymers.
这些化合物的最大用途在于双键与其它化学物质的反应。
If nations get twitchy about their oil supplies, how might they react if food, or water, are threatened?
如果国家对于石油供应都这么担忧的话，那么面临食物或水源短缺威胁的时候，他们要如何应对呢？
And for those who now had children, how would they react if their offspring wanted to take a gap year?
对那些现在有了孩子的人，如果他们的孩子想休学一年再上大学，他们会是什么反应？
This is 2pz atomic orbital plus 2pz atomic orbital, and they react to form something that smears in this manner.
这是2pz原子轨道与2pz原子轨道作用，他们按照这样的方式互相作用形成了一些东西,虽然还带一点拖尾效应。
Gases from organic material buried deep in the Earth can also escape to the surface, where they react with oxygen.
深埋的地球内部的有机物释放出的气体也会溢出到地表与氧气反应。
What matters most are what real consumers spend their money on-and how they react to the prices of those things.
最重要的问题是真正的消费者把钱花费到了哪里——以及他们对于那些物价有何反应。
An alchemist is an individual who studies the properties of objects, and tests how they react with one another.
所谓的炼金术士是那种探究物质特性并且测试它们之间如何相互作用的人。
When we use metal, it is important to know how they react with different substances, for example, water and oxygen.
使用金属时，要了解金属和不同的物质怎样发生反应，例如水和氧气，这一点很重要。
Children observations and responses during the class; what they say, how they react and their willingness to the part.
幼儿在活动中的观察和反应，他们说了什么，他们的反应和参与活动的兴趣。
Residues of cigarette smoke deposited on indoor surfaces can turn carcinogenic when they react with airborne chemicals.
室内物品表面上烟草烟雾烟残留物当与室内空气中的化学成分发生反时应会形成致癌物。
And they react to these inner feelings just as any animal reacts to any hurt or threat: by readiness to fight or to flee.
内心的折磨使他们像受到伤害或威胁的野兽，要么选择争斗，要么选择逃逸。
They react to create huge amounts of extra heat, enough to melt the titanium and allow it to pool at the bottom of the container.
它们的反应能放出大量余热，足够熔化钛，并使之在容器底部被收集。
They react to create huge amounts of extra heat, enough to melt the titanium and allow it to pool at the bottom of the container.
它们的反应能放出大量余热，足够熔化钛，并使之在容器底部被收集。
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