So, what's the change in x here?

那么x在此处的变化又是什么呢？

youdao

How does it change because of x?

它怎么随着x发生变化呢？

youdao

x So, the difficulty there is we can change x, or we can change y, or we can change both.

困难在于我们既可以改变，也可以改变y，或者同时改变。

youdao

And that's the following. Let's take a particle that is moving in the x-y plane, so that at one instance-- sorry, let me change this graph-- is here--oh, this is bad.

接下来,我们来看一个物体,在 x-y 平面内运动,在这个例子中,对不起,我要重画一下这个图,在这里,这画得不好

耶鲁公开课 - 基础物理课程节选

Poor man, he was interrupted about every five minutes by admirers or well wishers, including my predecessor on X-Change, Quentin Cooper.

BBC: The BA Science Festival

The X-Change went well with Professor Pete Vukusic bringing colour and iridescent butterflies to the proceedings, and Clifford Stott getting a rise out of the audience on why people become violent in groups.

BBC: The BA Science Festival

An X-prize for drugs, climate-change, you name the category.

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