Elin sy'n darllen y stori hon am antur Steff a'i dad-cu wrth chwilio am drysor. A story for infants about Steff and his grandfather's adventure as they go treasure-hunting.
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Elin sy'n darllen y stori hon am antur Steff a'i dad-cu wrth chwilio am drysor. A story for infants about Steff and his grandfather's adventure as they go treasure-hunting.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
