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| llyfrgell cynnwys (A data repository, in which items such as text, text boxes, pictures, tables, shapes, etc. can be stored and re-used within the same document and across multiple documents) | |||
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| llyfrgell cynnwys (A data repository, in which items such as text, text boxes, pictures, tables, shapes, etc. can be stored and re-used within the same document and across multiple documents) | |||
