fruitfulness
n. 丰收，丰硕；多实，肥沃
例句
Season of mists and mellow fruitfulness!
雾气弥散、瓜果飘香的成熟之季！
Explanatory power is only one test of a theory's fruitfulness.
解释力仅仅是一个理论是否富有成效的检验标准之一。
God will make our love fruitful, whether we see that fruitfulness or not.
无论我们能不能眼见丰收，天主都会使我们的爱硕果累累。
