1【牛津版】英语四年级下1~3课同步视频

 Unit1

https://v.qq.com/txp/iframe/player.html?vid=k0374xyybxu&auto=0&width=500px&height=375px

 Unit2

https://v.qq.com/txp/iframe/player.html?vid=s0374eyq4ig&auto=0&width=500px&height=375px

 Unit3

https://v.qq.com/txp/iframe/player.html?vid=l0374rtvi6h&auto=0&width=500px&height=375px