[al:新概念英语（第1册）第77课（听力强化·美英）]
[ti:Terrible Toothache－要命的牙痛
[ar:© 2011 露珠英语工作室]
[by:http://weibo.com/DewEnglishStudio]
[00:00.00]The dentist is very busy at the moment.－牙科医生这会儿很忙。