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· 视频商务英语口语Unit1:自我介绍 (alex，02-01)
· 视频商务英语口语Unit2:Using the telephone (alex，02-01)
· 视频商务英语口语Unit3:Making appointment (alex，02-01)
· 视频商务英语口语Unit4:Receiving visitors (alex，02-03)
· 视频商务英语口语Unit5:介绍产品(1) (alex，02-03)
· 视频商务英语口语Unit6:Making travel arrangements(1 (alex，02-03)
· 视频商务英语口语Unit7:Staying at a hotel(1) (alex，02-03)
· 视频商务英语口语Unit8:Showing visitors around the (alex，02-03)
· 视频商务英语口语Unit9:Explaining how sth works (1) (alex，02-03)
· 视频商务英语口语Unit10:Rescheduling plans and arra (alex，02-05)
· 视频商务英语口语Unit11:Analysing your competitors( (alex，03-01)
· 视频商务英语口语Unit12:Business letters and presen (alex，03-01)
· 视频商务英语口语Unit13:Travelling on business(1) (alex，03-01)
· 视频商务英语口语Unit14:Presenting a new product(1) (alex，03-01)
· 视频商务英语口语Unit15:Entertaining visitors (1) (alex，03-03)
· 视频商务英语口语Unit16:Complaining about products (alex，03-03)
· 视频商务英语口语Unit17:comparing products and pric (alex，03-05)
· 视频商务英语口语Unit18:价格谈判 Negotiating prices (alex，03-07)
· 视频商务英语口语Unit19:交货谈判 Negotiating delive (alex，03-07)
· 视频商务英语口语Unit18:价格谈判 Negotiating prices (alex，03-07)
· 视频商务英语口语Unit17:Comparing products and pric (alex，03-07)
· 视频商务英语口语Unit19:交货谈判 Negotiating delive (alex，03-07)
· 视频商务英语口语Unit16:Complaining about products (alex，03-08)
· 视频商务英语口语Unit15:Entertaining visitors(2) (alex，03-08)
· 视频商务英语口语Unit5:介绍产品(2) (alex，03-14)