expensive ...

太貴啦

It is too expensive, I doubt any body did buy.

https://bbs.pinggu.org/thread-1216411-1-1.html

Good
Good
Good

Hey， I am a student coming from the University of Hong Kong and now I am in urgent need of the solutions of this textbook. Because I just registered to become the member, so I don't have enough coins to buy it？ Can u send me the solutions first? I would pretty appreciate that.