例句與造句

1. Internal fertilization is an adaptation to life in a terrestrial environment
   體內(nèi)受精是對陸地生活環(huán)境的一種適應(yīng)。
2. Internal fertilization takes place in the seed plants and some clubmosses and ferns , often by means of a pollen tube
   種子植物、某些石松和蕨類植物依賴于花粉管完成體內(nèi)受精。
3. It's difficult to find internal fertilization in a sentence. 用internal fertilization造句挺難的