Then the scientists threaded the rope so that it would take two elephants, pulling both ends at the same time, to move the table. If one yanked an end without its helpmate doing so, no reward.

之后，科学家们穿开绳子，这样就需要两头大象同时拉绳子的末端来移动桌子，如果猛拉其中一端而帮友没有这么做，将不能获得食物。

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A church bell usually resides in a steeple and the exercise involved has to do with repeatedly pulling on a rope.

教堂的钟通常放在一个尖顶中，需要做的劳动就是要重复不停的拉绳子。

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To investigate the motivations of both species, the researchers chose a task that both groups would willingly undertake: pulling a rope to get a food reward.

为了研究两种物种的动机，研究者挑选了双方都乐于接受的任务：拉绳奖食物。

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Either a rope is pulling, a rope is pushing it, you are pushing it, you are pulling it.

无论绳子是在拉你还是推你,无论你是在推物体还是拉物体

耶鲁公开课 - 基础物理课程节选

We know there is no thing called a massless rope, but most ropes have a mass, but maybe negligible compared to the two blocks you are pulling, so we'll take the idealized limit where the mass of the rope is 0.

我们都知道无质量的绳子是不存在的,是绳子就有质量,但是相比于这两个物体就可以忽略不计了,所以我们有了这个理想的条件,即绳子的质量都是 0

耶鲁公开课 - 基础物理课程节选

We'll give it a name, but by linking that T to that T, we can also figure out the same T must be exerted on this one by Newton's third law, because if this block is the only one that could be pulling this rope with T.

我们先给它命个名,把这个 T 和那个 T 联系起来,利用牛顿第三定律,我们可以知道这个 T 也一定作用在这个物体上,因为如果这个物体是唯一,受到绳子拉力 T 的物体

耶鲁公开课 - 基础物理课程节选

"They act like Lebanon is a rope and each is pulling the rope towards himself - and Lebanon is in the middle, " she adds.

BBC: Lebanese sceptical over unity talks

He could choose one of the trays, pulling it by way of a rope just halfway to the cage.

ECONOMIST: Evolution

It had a colored rope, with a yellow handle, and you held the handle and walked pulling the cement mixer behind you rather like a wagon, although it was nowhere near the size of a wagon.

NEWYORKER: All That