Finally, after about twenty minutes, Ron's large feet reappeared on the ladder.

最后，大约二十分钟以后，罗恩的大脚又在楼梯上出现了。

So it's like this here plenty of food on the ladder out on these hills.

像这样的地方有很多食物。

So, for me climbing a few more rungs on the ladder means more money and more security.

所以，对我来说，多爬几级就意味着更多的钱和安全感。

They started climbing upward on the ladder of success.

他们开始在成功的阶梯上向上攀登。

Number one is getting more people on the ladder, getting more people banked.

第一是让更多的人登上阶梯，让更多的人入库。

Now a tiny black spider raced up the ladder on to the bridge.

现在一只黑色的小蜘蛛从梯子上跑到桥上。

You talked a lot about I think what's lower down on the ladder.

你谈了很多关于我认为阶梯较低的部分的内容。

They're part of babbling, a crucial rung on the ladder to spoken language.

它们是牙牙学语的一部分，牙牙学语是口语阶梯上的一个重要梯级。

But what about the force on the ladder from the floor?

但是施加的力呢？ 在地上的梯子上？

The lowest rung on the ladder.

权限最低的内阁成员。

Meaning that the total force from the floor on the ladder is 105 Newtons.

这意味着施加的力的总量 从地板到墙壁是 105 牛顿。

And the force from the wall has only one component -- it’s pushing sideways on the ladder.

来自墙壁的力只有一个分量——它在梯子上向侧面推。

You can still see the diagonal marks of the ladders in the plaster on the inside walls.

您仍然可以在内墙上的灰泥中看到梯子的对角线标记。

The police did find a ladder outside of the bedroom window, but there were no fingerprints on the ladder.

民警确实在卧室窗外找到了梯子，但梯子上并没有指纹。

But, how much force is there on the ladder, from both the wall and the floor?

但是施加了多大的力 梯子，靠墙和靠地板？

Then they earn jewels for the pin as they increase their sales. Each jewel is placed higher on the ladder than the others.

随着销量的增加，再用别针换珠宝。每件珠宝都放在阶梯的上一层。

And we know that both of those torques equal each other, because the net torque on the ladder is zero.

我们知道这两个时刻是相等的，因为结果 施加在梯子上的扭矩为零。

And the force from the wall has only one component -- it's pushing sideways on the ladder.

墙壁施加的力有 一辆车，从侧面推着梯子。

It's actually not his responsibility if people can't manage to stay on the ladders they borrow from him — that's his own view.

有人没法在从他那儿借来的梯子上站稳也不是他的责任，他想。

We don’t know how strong it is. But we can figure that out, by thinking about the torques acting on the ladder.

我们不知道它有多强。 但是我们可以通过考虑作用在梯子上的扭矩来解决这个问题。