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[夏说英语新闻晨读] 夏说英语新闻晨读(MP3+文本) 第487期:帝国理工全息投影课堂
University classes are set to be given a futuristic spin by letting lecturers appear as hologram-like apparitions beamed in from afar.2018-11-15 编辑：villa
Severity: Notice
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Filename: libraries/Cache_file.php
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Severity: Warning
Message: Memcache::connect(): Can't connect to 127.0.0.1:11211, Connection refused (111)
Filename: libraries/Cache_file.php
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2018-11-15 编辑：villa
