They're lenses because they're convex vessels, and when they're full of water, they act as a lens and you see the horizon in them, upside down and backwards.
它们是透镜，因为它们是凸面容器，当它们盛满水后，它们可作为透镜使用，你可以看到它们里面上下颠倒的地平线。
They need to think before they act and make good decisions for themselves.
他们需要三思而后行，为自己做出正确的决定。
并且他们也按这一信念行动起来。
为什么他们秘密行动？
Humans are rational because they act for reasons.
人类理性是因为他们行动是有理由的。
We never know why a person ACTS the way they act.
我们永远都不知道为什么一个人会那样去做。
Alcohol can affect people's health and also how they act.
酒会影响人们的健康，也会影响人们的行为。
But in front of their families they act like real couples.
但在家人面前，他们的举动就像一对真正的夫妻。
Happy people don't just think positive, they act positive.
快乐的人不只是积极思考，而且积极行动。
The Americans say they act alone because the ISI fails to co-operate.
美国人说他们要单独行动，因为三军情报局未能进行合作。
Higher oil prices hurt the economy because they act like a tax increase.
高价的石油会影响经济，这是因为其作用就像是增加税务一样。
Be curious as to why things are the way they are, why people act the way they act.
好奇为什么事情会如此，为什么人们会这样做。
Elephants do not worry about things crawling up their nose. Instead, they act upon instinct.
大象不怕什么东西会爬进它们的鼻子里，它们只凭着本能做出反应。
And people always tell me that I should believe animals are rational because they act for reasons.
人们总是告诉我要相信，动物很理性，因为它们的行动也有原因。
They are opportunities and, by solving them, they act as vehicles to get you where you want to go.
它们是机会，解决了，它们就会像交通工具一样，载着你到达你想到之处。
They will help sick or injured dolphins as much as they can, and they act as a team if there is danger.
它们会尽力帮助生病或受伤的海豚；在遇到危险时，它们会相互协助。
Aerosols also affect cloud microphysics because they act as nuclei around which water droplets or ice forms.
同时，因为它们是小液滴和冰晶形成需要的凝结核，因此尘埃微粒还能在云微物理学层面给云层带来改变。
The seat rows only backscatter frequencies above a certain threshold, though, so they act, in effect, as a sound filter.
每排座椅只反射高于一定频率的声音，因此实际上它们充当的是声音过滤器。
These types of applications focus on actions that you might perform rather than on the resources upon which they act.
该类型的应用程序集中于您可能执行的操作，而不是集中于操作所依靠的资源。
But because they act deep in neural pathways of the brain, some of them are bound also to enhance people's power to think and learn.
但由于它们作用于大脑深层的神经系统，有些肯定也能增强人的思考和学习能力。
Cosmetics and drugs containing grape compounds are already available, but the way they act on cells has not been well understood until now.
含有葡萄化合物的化妆品和药物已经上市，但目前为止它们对细胞的作用方式还没有得到很好的认知。
Regardless of whether these hormones contribute to obesity and eating disorders or are affected by them, do they act alone or in concert?
不管这些激素是否会导致或影响肥胖问题和饮食失调，现在的疑问是它们是单独起作用呢还是共同起作用？
These tags have no visible presence (unless you add borders and such, as I have), but they act as a good marker for where content should go.
这些标记没有可见的表示形式(除非添加边框，像我这样做)，但它们很好地标记了内容的放置位置。
So the next time someone does something hurtful to you, remember two things, they act like that towards other people as well, and it’s not about you!!
所以下一次有人做了伤害你的事情，记住两点：他们也对其他人做同样的事情，而且根本不是你的问题！
JAMES SUROWIECKI: Yeah, this is a very interesting idea that suggests that how people think (construe) a problem has a powerful effect on how they act.
答：是的，这是一个很有意思的见解，认为人们对一个问题的看法(理解)对他们的行为有着强大的影响。
They're lenses because they're convex vessels, and when they're full of water they act as a lens and you see the horizon in them, upside down and backwards.
说它们是镜头，因为它们是凸面的容器。盛满水后，它们可作为镜头使用，你可以通过它们看到颠倒过来的地平线。
Slower growth, tighter money and higher interest rates have not historically been good for stock prices. At the least, they act as a drag on any potential rally.
增长更慢，银根更紧，利率更高历来对股票行情都不是利好，最起码，这些举措都拖慢可期回升的步伐。
As a result, they act surprised when it takes me 10 minutes to pick a sandwich or when I confess that I still get mild panic attacks when choosing floss at the drugstore.
结果当他们看到我花十分钟才点了个三明治，或者听说我在药店挑牙线的时候会小小地恐慌，都觉得不可思议。
I think social networks are the biggest heuristic we've ever had to achieving the original vision of Nicholas Negroponte's idea — they act as your personalization heuristics.
我认为，在实现尼古拉斯•尼葛洛庞帝的原始设想方面，社交网络称得上迄今最伟大的探索，它们是用户的个性化探索和发现工具。
I think social networks are the biggest heuristic we've ever had to achieving the original vision of Nicholas Negroponte's idea — they act as your personalization heuristics.
我认为，在实现尼古拉斯•尼葛洛庞帝的原始设想方面，社交网络称得上迄今最伟大的探索，它们是用户的个性化探索和发现工具。
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