propagating fecundity的用法和樣例：
例句
- He used aphid fecundity data to elucidate the theoretical effects of antibiosis on insect population dynamics.
他利用蚜蟲(chóng)繁殖力資料說(shuō)明了抗生作用對蟲(chóng)口動(dòng)態(tài)的理論效應。 - Why do individuals deteriorate as they grow old, with resultant reduced fecundity and vigor?
為什么生物個(gè)體變老后身體惡化，繁殖力和精力降低？
