一周以後, You-Tube

來源: 2017-09-04 05:25:31 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:

Imagine it is CNN, and I get paid. My speaking is under class, need faster and clearer. I will show 50 illustrations and large printed scriptions for 18 min. presentation.