单词：external fertilization
external fertilization的用法和样例：
例句
- He works at the Kentucky Center for reproductive Medicine and Invitro Fertilization.他现在供职于肯塔基生殖保健品和体外受精研究中心。
- In vitro fertilization was once seen as depraved God-playing and is now embraced, even by many of the devoutly religious.体外受精曾一度被视为神耍弄的堕落把戏，而现在被人们，其中甚至有许多虔诚的宗教信徒所接受。
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