北京版英语三年级上册Unit 2 October 1st is our National Day 音频素材（4份）

三年级上册英语音频素材-Unit 2 October 1st is our National Day lesson 5 北京课改版.mp3

三年级上册英语音频素材-Unit 2 October 1st is our National Day lesson 6 北京课改版.mp3

三年级上册英语音频素材-Unit 2 October 1st is our National Day lesson 7 北京课改版.mp3

三年级上册英语音频素材-Unit 2 October 1st is our National Day lesson 8 北京课改版.mp3