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Culture and DIscovery

'Time travel is possible'

作者:21ST
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霍金畅想“时间旅行”。

词数 384 建议阅读时间 6分钟 教案和课件见网站 测试见7版

IF you could travel backward or forward in time, which direction would you go, and what would you do when you got there? It’s the stuff of books, television shows, movies and daydreams.
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