"Singing is the oldest, mosteffective and productiveway to tacklegirls," asserted the 37-yearold, affectionatelyknown as Ah Guan at Tan Chang RenMusic Station.
Potholes or sloughsformed by a glacier’s retreat from the central plains of North America, are nowknown to be some of the world’s most productiveecosystems.
Meaning of productive for the defined word.
Grammaticalement, ce mot "productive" est un adjectif.