你以前经常会问到到“这个课程有什么用”，这是个好问题，但是我希望你理解：“教育的真谛就是当你忘记一切所学到的东西之后所剩下的东西。”
You often question "what good is this course". I encourage you to be inquisitive, but I also want to tell you :"education is what you have left after all that is taught is forgotten".
通过仔细的倾听，你经常会看到你以前没有看到的东西，甚至会发现你不知道的误区。
Through careful listening, you often see things you didn't see before and can even discover misunderstandings you didn't know.
事实上，经常看看导航栏一直以来都是个好主意，把那些可以展开的项目点开看看经常会让你发现以前从不知道的很多选项。
In fact, looking at the navigation bar is always a good idea; check to see what can be expanded and you'll often find options that you didn't know existed.
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