Anyway, we will look mostly at particular examples, but just to point out that this is useful when you study guesses in physics.
我们一般都会讨论更加具体的问题，但是只是提一下,你学气体物理的时候，这个还是挺有用的。
Mom: Think of it this way... you have to study no matter what, so just try to be happy when you do!
妈妈：你这样想吧……你无论如何都得念书，所以念书时就尽量高兴一点吧！
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