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· 视频商务英语口语Unit6:Making travel arrangements(2 (alex，03-14)
· 视频商务英语口语Unit7:Staying at a hotel(2) (alex，03-14)
· 视频商务英语口语Unit8:Showing visitors around the (alex，03-14)
· 视频商务英语口语Unit9:Explaining how sth works(2) (alex，03-14)
· 视频商务英语口语Unit10:Rescheduling plans and arra (alex，03-15)
· 视频商务英语口语Unit11:Analysing your competitors( (alex，03-15)
· 视频商务英语口语Unit12:Business letters and presen (alex，03-15)
· 视频商务英语口语Unit13:Travelling on business(2) (alex，03-15)
· 视频商务英语口语Unit14:Presenting a new product(2) (alex，03-15)
· 视频商务英语口语Unit20:达成交易Concluding a deal(1 (alex，03-15)
· 视频商务英语口语Unit20:达成交易(最终版) (alex，03-15)