Ramba uchiverenga ndima ino - Pamakwikwi eOlympic eZhizha ra2008, Guido akapedza ari wechi20 mumakwikwi evarume emamita 100 ekumhanya achidzokera kumashure uye wechi14 mumakwikwi evarume emamita 4 × 100 ekumhanya achidzokera kumashure
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