2【牛津版】小学英语二年级下4~6课同步视频

 Unit4

https://v.qq.com/txp/iframe/player.html?vid=u03741plqd4&auto=0&width=500px&height=375px

 Unit5

https://v.qq.com/txp/iframe/player.html?vid=f0374vbxp8e&auto=0&width=500px&height=375px

 Unit6

https://v.qq.com/txp/iframe/player.html?vid=u0374vuw4qn&auto=0&width=500px&height=375px