当初我们也是这样说汤姆的。
其实我们也是这样。
对于变色龙来说,这叫做保护色,对我们也是这样吗?
For chameleons this is a defense strategy, is it the same for us?
Cause there, you're only dividing the problem in half and half, and half and half, we are doing that here.
因为在那个例子中,只需一次又一次地,对问题进行划分,在这儿我们也是这样做的。
This should all sound incredibly familiar, like I'm just repeating myself in terms of photoelectric effect, because essentially that's what I'm doing, and that's one reason we spent so much time and did so many problem-set problems on the photoelectric effect.
这应该听起来极其熟悉,就像我在重复自己在讲光电效应时所说的话,因为基本上我正是在这样做,这也是我们在光电效应这个问题上,花这么多时间,做这么多习题的原因之一。
Likewise for mass, we will take a chunk of some material and we will call it a kilogram.
质量也是这样,我们找来一大块材料,然后称它为 1 千克
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