I am hoping that if you learned your calculus, you learned about derivatives and so on by looking at x versus t.
我希望你们学习微积分时,通过观察x-t图来,学习导数等内容
If you think of two towns down here, Brive,b-r-i-v-e,famous for its rugby, and Tulle,t-u-l-l-e,which is a capital.
如果你可以想起来这儿的两个城镇,布瑞福,b-r-i-v-e,以英式橄榄球运动而负有盛名,图勒,t-u-l-l-e,是一个省的首府
So what I've said so far is, a particle moving in time from point to point can be represented by a graph, x versus t.
到目前为止,我说过,一个质点随时间的连续运动,可以用一幅x-t图来表示
Path number 1 I'm going straight up in the V-T diagram.
路径1在T-V图上,竖直向上。
So what we would like to do is to describe what the object does by drawing a graph of time versus space and the graph would be something like this.
然后我们要做的就是描述这个物体的运动,通过画一个"x-t"图,画出来的图就像这样
That is x versus t.
这就是x-t图
When I was working in a place called Tulle, which is down here--t-u-l-l-e, not Tours, but Tulle-- I knew vaguely that there had been a massacre there in June sixth, 1944, and a lot of people had been hung.
我在一个叫蒂勒的地方工作的时候,在这里t-u-l-l-e,不是图尔是蒂勒,我大概记得,在1944年六月六号那里有个大屠杀,很多人被吊死了
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