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21世纪英文报
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第517期
Science
An MP3 player that's the same size as a coin
二十一世纪英文报
第517期
作者:AGENCIES
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AN MP3 player, so small it could be mistaken for a coin, has been developed by two Korean firms.The MP3 player, Emp-Z, measures just 42 millimetres in diameter and 10 millimetres in thickness. ...
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