1【牛津版】英语三年级下1~3课同步视频

 Unit1

https://v.qq.com/txp/iframe/player.html?vid=w037414eiap&auto=0&width=500px&height=375px

 Unit2

https://v.qq.com/txp/iframe/player.html?vid=m0374ya8ov1&auto=0&width=500px&height=375px

 Unit3

https://v.qq.com/txp/iframe/player.html?vid=b0374osw4nx&auto=0&width=500px&height=375px