The first Canadaian-born Governor-General历史上的今天首位加拿大本土总督
first-born products第一代产品
The First-Born Son爱玩长男
Winona first-born daughter女性英文名字
first-order Born approximation一阶Born近似
Taro first-born male男性英文名字
first-born of all creation受造之物的首生者
The burdened first-born daughter负重长女
N-SING（单数型名词） Someone's firstborn is their first child. 头生子女 [oft N n]
She was my firstborn.
她是我的长女。