fecund
adjective formal uk/ˈfek.ənd/ us/ˈfek.ənd/
多产的;肥沃的;生殖力旺盛的
able to produce a lot of crops, fruit, babies, young animals, etc.
fecund soil 肥沃的土壤
活跃的;旺盛的
producing or creating a lot of new things, ideas, etc.
a fecund imagination 丰富的想象力