suppose I asked you to time a 100 meter spring in the Olympics, but I give you a stopwatch that is measured in units of 15 seconds?

如果我要求你,在奥林匹克数给100米短跑计时，但我会给你一个秒表,它可以测出15秒的大小？

麻省理工公开课 - 固态化学导论课程节选

and, but our biggest competitive season is in the spring time,

然后，但是我们最大的赛季是春天，

赛艇项目很流行 - SpeakingMax英语口语达人

If you connect the body to a spring, which is neither compressed nor extended, there's no force acting on it.

如果将一个弹簧连在这个物体上,弹簧既没有被压缩也没有被拉伸,也不会有力作用在它上面

耶鲁公开课 - 基础物理课程节选

What is the heart but a spring, ?" or reason but a means of calculating pleasures and pains."

除了跳动，心脏又为何物，除了感觉愉快和痛苦，人为什么而活“

耶鲁公开课 - 政治哲学导论课程节选

If we think about the drinks industry more generally here, rather than just beer, this would be Guinness, this would be Poland Spring, This is water and everything else would be in between here.

如果我们把啤酒业想得更普遍点,不仅仅只有啤酒,这可能是吉尼斯,这可能是波兰泉水,这是水而其他的产品分布在中间

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This is Spring,1861.

在这1861年的春季

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there is a huge festival, "The Venice Beach Spring Fling."

会有一个大型节日，“威尼斯海滩春季狂欢”。

请记住我 - SpeakingMax英语口语达人

The spring is getting squashed because you are pushing down and the floor is pushing up.

弹簧现在被压缩了,因为你在往下压,地面在往上推

耶鲁公开课 - 基础物理课程节选

If every time I get the same acceleration, I'm convinced this is a reliable spring that is somehow producing the same force under the same condition.

如果每次都能得到相同的加速度,这个弹簧的可靠性就能令人信服,即它在相同的条件下能够产生相等的力

耶鲁公开课 - 基础物理课程节选

So Steve and Patrick are respectively the managers of Coca-Cola and Poland Spring and Patrick believes that the Coca-Cola manager is going to may be we should just make this Coke and Pepsi since two identical they're near enough and identical, right?

史蒂夫和帕特里克分别是,可口可乐和波兰泉的经理,帕特里克认为可口可乐的经理打算,或许该用可口可乐和百事可乐,他们俩才是对手是吧

耶鲁公开课 - 博弈论课程节选

But if I'm accelerating, the force exerted by the spring and therefore, the needle the weighing machine reads is m.

但是如果我在加速运动,那么弹簧的弹力,也就是称重机上指针的读数就是 m

耶鲁公开课 - 基础物理课程节选

You are pushing down with the weight mg, and the floor has got to be pushing up with the mg, because the spring is not going anywhere.

你向下的作用力是重力 mg,然后地面向上的支持力也是 mg,因为弹簧现在根本没动

耶鲁公开课 - 基础物理课程节选

So the spring is being pushed by mg here and mg here.

所以弹簧受到一个向下的 mg 还有一个向上的 mg

耶鲁公开课 - 基础物理课程节选

Newton is not going to come and tell you what force the spring will exert when it's pulled by some amount.

牛顿不会过来告诉你,弹簧被拉伸一定量时会产生多大的力

耶鲁公开课 - 基础物理课程节选

If you pull the spring, there is a force acting on it.

如果拉这个弹簧,就有力作用在物体上了

耶鲁公开课 - 基础物理课程节选

This is the force exerted by the spring on the mass.

这是弹簧对物体的作用力

耶鲁公开课 - 基础物理课程节选

We don't know what the force of the spring is.

我们不知道弹簧的力多大

耶鲁公开课 - 基础物理课程节选

Then, I bring the elephant and I pull the spring by the same amount and I find the acceleration of the elephant and the denominator is obviously the mass of the elephant.

然后我再找来大象,用相同的力去拉弹簧,大象就具有了加速度,很明显,分母就是大象的质量

耶鲁公开课 - 基础物理课程节选