3【牛津版】英语四年级下7~9课同步视频

 Unit7

https://v.qq.com/txp/iframe/player.html?vid=m0374x9dz1v&auto=0&width=500px&height=375px

 Unit8

https://v.qq.com/txp/iframe/player.html?vid=y0374927mcd&auto=0&width=500px&height=375px

 Unit9

https://v.qq.com/txp/iframe/player.html?vid=n0374x9cb7k&auto=0&width=500px&height=375px