So, the first unit of the class, so basically I'm going to go over the first half of the class today, and the second half of the class on Tuesday just because we have to start somewhere.
先来看看本课程的第一单元，今天先概要地复习一下这门课的第一部分，周二再回顾第二部分，为了有个起点。
Since both the base class and derived class have the same interface, there must be some implementation to go along with that interface.
因为基类和衍生类拥有相同的接口，因此这个接口必须要有必要的实现。
On Friday, I go to myP. E class. On Saturday and SundayI have no class!
星期五，我上体育课。星期六和星期天，我没有课。
Certainly, if you have more money, can go to the famous product street, there are world first-class brand chain monopolized shops there, they will offer first-class services to you too.
当然，如果你有更多的金钱，也可以去名品街，那里有国际一流的品牌连锁专卖店，他们也会为您提供一流的服务。
Also a fact: class day is a terrible name for a day when you don't have to go to class... like ever again.
另一个事实：ClassDay对于一个…再也不用去上课的日子来说是很烂的名字。
Also a fact: class day is a terrible name for a day when you don't have to go to class... like ever again.
另一个事实：ClassDay对于一个…再也不用去上课的日子来说是很烂的名字。
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