Mae Radio Cymru'n ymuno â BBC World Service dros nos ar gyfer newyddion a materion cyfoes. Radio Cymru joins BBC World Service for news and current affairs through the night.
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Mae Radio Cymru'n ymuno â BBC World Service dros nos ar gyfer newyddion a materion cyfoes. Radio Cymru joins BBC World Service for news and current affairs through the night.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
