external fertilization的用法和樣例：
例句
- He works at the Kentucky Center for reproductive Medicine and Invitro Fertilization.
他現在供職于肯塔基生殖保健品和體外受精研究中心。 - In vitro fertilization was once seen as depraved God-playing and is now embraced, even by many of the devoutly religious.
體外受精曾一度被視為神耍弄的墮落把戲，而現在被人們，其中甚至有許多虔誠的宗教信徒所接受。
