Episode details
Available for over a year
Faint ohonon ni sy`n gwbod siwd mae`r ffon symudol yn gweitho? Ellis Glynne sy`n egluro.
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.
Available for over a year
Faint ohonon ni sy`n gwbod siwd mae`r ffon symudol yn gweitho? Ellis Glynne sy`n egluro.
Programme Website