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bu chwyldro ym maes teledu dros y blynyddoedd diwethaf yn bennaf oherwydd dyfodiad gwasanaethau lloeren a digidol
television , in particular , has undergone a revolution in recent years , largely due to the onset of satellite and digital services
methodd y chwyldro gwyrdd â bwydo'r byd gan fod dod â newyn y byd i ben yn dibynnu ar reolaeth a pherchenogaeth tir
the green revolution failed to feed the world because ending world hunger relies on the control and ownership of land