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[2019年下半年VOA常速英语] VOA常速(翻译+字幕+讲解):AR技术助力助产士接生
Midwives bring new life into the world, and these midwifery students at London’s Middlesex University are learning a new way to do this.2019-07-17 编辑:Emma
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2019-07-17 编辑:Emma