形容词头生的（子女），初生的，第一胎生的
名词初生儿，长男，长女
1. He delivered the latest controversy hours before the birth by revealing that he was planning to eat his firstborn's placenta and umbilical cord.
2. firstborn是什么意思
2. To call someone " firstborn " is a way to signify the importance of a person.
3. And some rural areas have allowed parents whose firstborn is a girl, to have another child.
4. She says she plans to have another child after her firstborn arrives in October.