1. No study is more efficacious and more fecund in instruction. 没有任何研究工作会比这更有功效，更富于教育意义。
2. These waters flow through Tongass National Forest—a rich, shadowy, complex place fecund with life. 这些水体流经汤加斯国家森林——一个富饶葱郁，生命繁多旺盛的地方。
3. In most other countries the rich were less fecund: the Japanese samurai produced little more than one son per father, for example. 而其他大部分国家富人比较少产：例如日本的武士阶层每个父亲就生一个多点儿子。
英英解释
adj.
1. capable of producing offspring or vegetation
2. intellectually productive
