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Jack:
Hi,Sophie. You look worried today.What happened? 
你好，索菲。你今天看上去有些烦，怎么啦？
Sophie:
There's something wrong with my copy machine.
我的复印机出问题了。
Jack:
Can I have a look?Maybe I can help you.
我可以看一下吗？或许我可以帮你（修一下）。
Sophie:
That's very kind of you.Then would you please come here?I will show you.
你真好。那麻烦你到这里来看一下。
Jack:
Oh,it's not a big deal.Just a paper jam.I'll take them out.
哦，没什么大问题，就是卡纸了。我帮你取出来。
Sophie:
Thanks a lot.You've really done me a big favor.
太谢谢了，你帮了我一个大忙。
Jack:
It's my pleasure.
没什么，我很乐意（帮你）。