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InSiliconValley,it'snevertooearlytobecomeanentrepreneur.Justask13-year-oldDavidMoore.Theeighth-graderhaslaunchedacompanylastOctobertod
英语
any last Octob
InSiliconValley,it'snevertooearlytobecomeanentrepreneur.Justask13-year-oldDavidMoore.Theeighth-graderhaslaunchedacompanylastOctobertod
英语
any last Octob
InKenyablindstudentsandthosewithpooreyesightwerestillusingBraille(
布莱叶盲文
)booksfortheirstudiesuntilrecently.ButKenyanschoolsfortheblinda
英语
an schools for
1
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