7 results
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English: attenuation pond
Welsh: pwll arafu
English: attenuation pond
Welsh: pwll gwanhau
English: attenuation ponds
Welsh: pyllau gwanhau
English: flood attenuation
Welsh: arafu llifogydd
English: attenuated
Welsh: wedi’i drin i’w wneud yn ddiniwed
English: live attenuated influenza vaccine
Welsh: brechlyn ffliw byw wedi'i wanhau
Welsh: brechlyn ffliw pedwarfalent byw wedi'i wanhau