Dechreuwyd ymgyrch i gadw'r drysau a'r ffenestri ar gau pan fydd y gwres ymlaen
Iau 1af Chwe 2024
Campaign introduced to keep the windows and doors shut when the heating is on shared and discussed with all children and teachers
Disgyblion sy'n cymryd rhan yn y gweithgaredd hwn: 3
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