[al:新概念英语（第1册）第131课（听力强化·中英）]
[ti:Don't be so Sure!－别那么肯定！]
[ar:© 2011 露珠英语工作室]
[by:http://weibo.com/DewEnglishStudio]
[00:00.00]Don't be so sure.
[00:01.00]别那么肯定。