Trafodaeth ar bynciau'n cynnwys tywydd eithafol, sychder, a diwrnod cynta'r gwanwyn. Topics include extreme weather, drought, and the first day of spring. Show more
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Trafodaeth ar bynciau'n cynnwys tywydd eithafol, sychder, a diwrnod cynta'r gwanwyn. Topics include extreme weather, drought, and the first day of spring. Show more