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Dros Ginio - Ydi geneteg yn gwneud i athletwyr ragori mewn chwaraeon? - 成人快手 Sounds

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Ydi geneteg yn gwneud i athletwyr ragori mewn chwaraeon?Ydi geneteg yn gwneud i athletwyr ragori mewn chwaraeon?

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Heledd Iago ac Ifan Phillips yn trafod geneteg a llwyddiant mewn chwaraeon

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Dros Ginio
Ydi geneteg yn gwneud i athletwyr ragori mewn chwaraeon?
Heledd Iago ac Ifan Phillips yn trafod geneteg a llwyddiant mewn chwaraeon
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