阿俊20170620(26-30)

阿俊20170620(26-30)

2017-06-17    06'01''

主播: 阿俊丢丢

80 1

介绍:
20170620 26. Have I made myself clear? 我讲明白了吗? 27. Could you say it again? 你能再说一遍吗? 28. Any questions? 有什么问题吗? 29. That's all for today. 今天就讲到这里。 30. Please turn in your paper before leaving. 请在离开前将论文交上。