At 2:00 p.m., on the way to the beach, our leader told us some skills we may need for our lives outdoors, such as how to deal with snakes and wild dogs.

下午2点，在去海滩的路上，我们的领队告诉了我们一些户外生活可能需要的技能，比如如何对付蛇和野狗。

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For this purpose, our schools need both the talent and the organization to educate each child who arrives at the schoolhouse door.

为此，我们的学校需要人才和组织来为每一个来到学校的孩子提供教育。

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At some point, we all begin to question our heroes and our need for them.

在某个时刻，我们都开始质疑我们的英雄以及我们是否需要他们。

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If we do not get enough of the vitamins we need in our food,we are at risk of developing a number of diseases.

VOA: special.2009.04.21

So, then all we need to do to determine which elements that corresponds to is take a look at our periodic table.

因此，我们需要做的只剩下,在元素周期表中寻找,对应的元素有哪些。

麻省理工公开课 - 化学原理课程节选

But that's a little bit hard, we aren't all that good at seeing electrons with our eyes, so we need to think of a way to do this.

但那有一点困难，我们都不能通过眼睛看到电子，我们需要想一种方法去做到它。

麻省理工公开课 - 化学原理课程节选

We need to cut our deficit at home and we also need to make sure we cut spending in Europe as well.

BBC: Labour 'repositioning' itself on Europe - David Miliband

Sincerity is the fulfillment of our own nature, and to arrive at it we need only follow our own true Self.

FORBES: How To Be A Real Leader - Even When You're In A Fake Environment

The Department of Health and Human Services has declared a public health emergency as a precautionary tool to ensure that we have the resources we need at our disposal to respond quickly and effectively.

WHITEHOUSE: The Necessity of Science