[al:新概念英语(第1册)第81课(听力强化·中英)] [ti:Roast Beef and Potatoes-烤牛肉和土豆] [ar:© 2011 露珠英语工作室] [by:http://weibo.com/DewEnglishStudio] [00:00.00]No, thanks, Tom. [00:01.00]不,谢谢,汤姆。