4【牛津版】英语一年级下10~12课同步视频

 Unit10

https://v.qq.com/txp/iframe/player.html?vid=e0367erospx&auto=0&width=500px&height=375px

 Unit11

https://v.qq.com/txp/iframe/player.html?vid=l036710ltt8&auto=0&width=500px&height=375px

 Unit12

https://v.qq.com/txp/iframe/player.html?vid=j0367pdqmzp&auto=0&width=500px&height=375px