internal fertilization造句

例句与造句

1. Internal fertilization is an adaptation to life in a terrestrial environment
   体内受精是对陆地生活环境的一种适应。
2. Internal fertilization takes place in the seed plants and some clubmosses and ferns , often by means of a pollen tube
   种子植物、某些石松和蕨类植物依赖于花粉管完成体内受精。
3. It's difficult to find internal fertilization in a sentence. 用internal fertilization造句挺难的