[al:新概念英语（第1册）第21课（听力强化·美）]
[ti:Which Book?－哪一本书？
[ar:© 2011 露珠英语工作室]
[by:http://weibo.com/DewEnglishStudio]
[00:00.00]No, not that one. The red one.－不，不是那本。是那本红皮的。