好，我们现在开始上课，今天我想去讨论小行星是怎样被发现的。
Ok, Let's get going, today I'm going to talk about how the asteroid belt was discovered.
开始上课意味着要在不同的时间出现在不同的地方，因此，从这周就开始适应这种日常是个好主意。
Starting classes means being in different places at different times, so it's a great idea to start getting used to that routine right this week.
刚开始的时候我不理解老师上课所说的，现在我能听得懂了。
At first I couldn't understand what my teacher said in class, but now I can understand.
老师：好吧，下次别忘了做你该做的事，好吗？现在我们开始上课。
Teacher: Well, don't forget to perform your duty next time. OK? Now, let's start our lesson.
好吧，下次别忘了做你该做的事，好吧？现在我们开始上课。
Well. Don't forget to perform your duty next time, ok? Now, let's start our lesson.
约翰过去经常逃课，现在他决定了从新开始，每天都准时上课。
Now he has decided to turn over a new leaf and go to school on time every day.
从开始上课到现在你一直跟你的同学在聊天。
Ever since the class started, you have been chatting with your classmate!
从现在开始，在每堂语文课上课之始，我们请同学们做口头作文。
From now on, at the beginning of every Chinese class, we'll ask someone to do the oral composition.
从现在开始，在每堂语文课上课之始，我们请同学们做口头作文。
From now on, at the beginning of every Chinese class, we'll ask someone to do the oral composition.
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