Fersiwn fyrrach o drafodaeth ar bynciau'n cynnwys gwiberod a phryfetach pyllau glo. A shortened edition of Saturday's discussion on topics including new bug species at coal mines.
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Fersiwn fyrrach o drafodaeth ar bynciau'n cynnwys gwiberod a phryfetach pyllau glo. A shortened edition of Saturday's discussion on topics including new bug species at coal mines.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
