point B

And en route from point A to point B, the total amount of rain you run into from the side has nothing to do with how fast you're going, just like how a snowplow will plow the same amount of snow from a stretch of road, regardless of the exact speed it drives.

在A地到B地的路途上，你从侧边碰上的总雨量跟你移动的多快完全没有关系，就像是为何铲雪车不论行驶的确切速度，在一段路程上将会铲等量的雪。

Why not say that the work done when that object moves from A to B must be the kinetic energy at point B minus the kinetic energy at point A?

为什么不说物体从，点A到点B所做的功，等于点B的动能减去，点A的动能？

We joined point a to point B in a straight line.

我们画一直线把a点和b点连接起来。

Mark from point A round CF to point B at site mark.

从A点开始标,沿着前中心线旋转样板到B点.

The two lines cut at point B.

这两条线在B点上相交.

In enterprise networks, the name of the game is getting packets from point A to point B fast.

在企业网中，游戏规则是把包从A点快速送到B点。