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Syched a Sychu
Tywod! M么r! Mwydod! Mae Porthoer wedi'i orchuddio 芒 mwydod. O ble ddaethon nhw? Sand! Sea! Worms! Porthoer is covered in wriggling worms. Where did they come from?
Ar y Teledu
Dydd Iau Nesaf
11:30