So, if instead you put your particle somewhere down here on the electric field, or on the wave, the electric field will now be in the other direction so your particle will be pushed the other way.
还有方向,所以如果,你把粒子放在这下面,电场的方向相反,粒子会朝另一个方向运动。
And I used to live here, so I now come down to see some friends and
我以前住在伦敦,所以现在我来拜访朋友,
I'm out of numbers here, so now I can blindly write down the rest of these numbers.
这儿再没有数字了,所以我可以直接,将剩下的这些数字写下来。
Now that definition, if you're worried about what I've written down here and you want to see it in words, on the handout I've already put on the web that has the summary of the first class, I included this definition in words as well.
对于这个定义,如果你还有些疑问,而且你想看用文字表述的,在讲义中有,我已经上传到网上了,里面有第一节课的总结,也这个定义的文字形式
Now down here I can use that other piece of syntax we just saw.
到这里,我可以使用我们刚才看到的,其它的语法。
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