4【牛津版】英语四年级下10~12课同步视频

 Unit10

https://v.qq.com/txp/iframe/player.html?vid=s0374sqogyh&auto=0&width=500px&height=375px

 Unit11

https://v.qq.com/txp/iframe/player.html?vid=o0374873o07&auto=0&width=500px&height=375px

 Unit12

https://v.qq.com/txp/iframe/player.html?vid=u0374mpntcn&auto=0&width=500px&height=375px