4【牛津版】小学英语二年级下10~12课同步视频

 Unit10

https://v.qq.com/txp/iframe/player.html?vid=w037474eyx2&auto=0&width=500px&height=375px

 Unit11

https://v.qq.com/txp/iframe/player.html?vid=u0374g771i5&auto=0&width=500px&height=375px

 Unit12

https://v.qq.com/txp/iframe/player.html?vid=y03743usy1r&auto=0&width=500px&height=375px