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Bob:
This time I really doomed. 
这一次我真的完蛋了.
Tom:
What happened?
怎么了？
Bob:
I play a serious trick to my teacher.
我这次严重地捉弄了老师。
Tom:
I've had enough of your nonsense.
你开玩笑也该适可而止！
Bob:
I have realized it,but it has happened already.
我知道错了，但事情已经发生了。
Tom:
You should make a hearty apology to your teacher.
你应该给老师诚恳地道歉。
Bob:
I have done it, but my teacher seems still angry.
我已经道歉了，但是老师似乎还是很生气。
Tom:
It doesn’t matter, I think your teacher will not blame you.
没关系的，我想老师不会责怪你的。
Bob:
I hope so.
希望如此了。
Tom:
Cheer up, let's start our CS game.
振作点，开始我们的的CS对战吧。