Group Buying on the Upsurge

摘要

cqvip:LAST month I was invited out for a Korean barbecue by a 23-year-old Chinese friend of mine,Huang Xuesong.I gladly accepted the invitation and we had dinner together.After a good meal,it was time to pay the bill.As I rummaged in my bag for my purse,my friend stopped me:"No,it’s okay.I’ve already paid over the Internet,"he said.I won-