2【牛津版】英语四年级下4~6课同步视频

 Unit4

https://v.qq.com/txp/iframe/player.html?vid=u0374y12qhb&auto=0&width=500px&height=375px

 Unit5

https://v.qq.com/txp/iframe/player.html?vid=k0374decq57&auto=0&width=500px&height=375px

 Unit6

https://v.qq.com/txp/iframe/player.html?vid=v0374n46o7n&auto=0&width=500px&height=375px