adj.头生的(子女),初生的,第一胎生的
n.初生儿,长男,长女
It eats away parts of his skin; death's firstborn devours his limbs.
他本身的肢体要被吞吃, 死亡的长子要吞吃他的肢体.
Charles is their firstborn son.
查尔斯是他们的长子.
And every firstborn male among your sons you shall redeem.
凡你儿子中头生的都要赎出来.