unit4补充资源包: 1)外交部翻译孙宁参加第7届21世纪杯演讲比赛的视频和演讲稿
2) One world, one economy 音频和文本
3)政策顾问Simon Anholt TED演讲:Which country does the most good for the world?
4) Global education in the 21st century 短视频
5)What is globali
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