It is true that many people do have diverse opinions about the need to protect our world.

的确，许多人对保护我们的世界的必要性有不同的看法。

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It is in schools that we learn the information we need to function in our society.

正是在学校里，我们学习了在社会中发挥作用所需要的信息。

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When a problem comes our way, we need to think critically to decide how to solve it.

当问题出现时，我们需要批判性地思考来决定如何解决它。

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Experts say this is why it is important to eat a mixture of foods every day, to get enough of the vitamins our bodies need.

VOA: special.2009.04.21

So we need to revise our account of what it is on the physicalist picture to say that you're dead.

我们应该重新修改一下,物理主义学上对死亡的定义。

耶鲁公开课 - 死亡课程节选

Because step five is that we need to fill in our bonding electrons, and we start it with filling in two electrons per bond.

因为第五步要做的是将我们的成键电子填在这，所以我们开始在每个键处填上两个电子。

麻省理工公开课 - 化学原理课程节选

We need it for the sake of our economy, we need it for our security, and we need it for our future.

WHITEHOUSE: Congressional Hispanic Caucus Institute��s 33rd Annual Award Gala | The White House

At least part of the explanation for this obsequiousness is oil, of course: They have it, we need it, and our economy would suffer badly if it were to become unavailable.

CENTERFORSECURITYPOLICY: What to Do About Saudi Arabia

We need to be clever about it and our lawyers need to work overtime to make sure those deals can be done.

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