看到两个video解释debate和speech program,蛮有意思:
https://www.youtube.com/watch?v=eSt86Jmluhg
https://www.youtube.com/watch?v=28u_X5zGaSg
看到两个video解释debate和speech program,蛮有意思:
https://www.youtube.com/watch?v=eSt86Jmluhg
https://www.youtube.com/watch?v=28u_X5zGaSg