4【牛津版】英语三年级下10~12课同步视频

 Unit10

https://v.qq.com/txp/iframe/player.html?vid=m0374nrp4lr&auto=0&width=500px&height=375px

 Unit11

https://v.qq.com/txp/iframe/player.html?vid=r0374mzjyh6&auto=0&width=500px&height=375px

 Unit12

https://v.qq.com/txp/iframe/player.html?vid=h0374iw9p69&auto=0&width=500px&height=375px