They have roots that stand in saltwater and look like cablesor ropes laid one on top of another.

VOA: special.2010.04.20

What makes up a rope? Of course you know, ropes are basically bundles of fibers, very same fibers that have been woven together in a certain way.

绳子是由什么构成的？，你肯定知道，是由一束束纤维构成，是由一样的纤维按某种方式编织,在一起构成。

耶鲁公开课 - 死亡课程节选

Now we really do have two ropes.

现在真的有2根绳子。

耶鲁公开课 - 死亡课程节选

Climbers wear ropes and attach devices to the rocks as they climb many hundreds of meters up.

VOA: special.2009.12.09

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

But,the lead climber can only do this for about twenty-five meters, the length of the climbing ropes.

VOA: special.2009.12.09

the ropes will be pulling the block with T in the other direction, then I got 10 Newtons here.

绳子也会对另一物体施加方向相反的拉力 T,于是我知道这里是 10 牛顿

耶鲁公开课 - 基础物理课程节选

They were suspended from ropes as they used heavy air-powered hammers to break any loose rock away from the face of the canyon walls.

VOA: special.2009.08.12

The list is long. There are temporary shelters, ropes,oxygen bottles,clothing, sleeping bags,food...and bodies!

VOA: special.2011.05.10

They also connect their ropes to the devices.

VOA: special.2009.12.09

you see the swaying ropes, the roiling water.

VOA: special.2009.09.02

So anyway,I'm putting all that on gas, ropes, and new nets and a brand-new shrimping boat.

VOA: standard.other