Would you like to go skating with me this afternoon?

Oh, I'd love to. But we're going to clean our dormitory. I can't be absent.

Maybe another time. People say that boys' dormitories are in a mess, is it true?

In fact, our dormitory is much worse than they can be described.

It's hard for me to imagine. How can you stand that?

You'll get used to it gradually.

Oh my, don't you know that such living environment is not healthy?

Yes, we do. That's why we have a cleaning every three months.

Three months? Incredible!