firstborn
🇬🇧/ˈfɜːstbɔːn/ 🇺🇸/ˈfɜːrstbɔːrn/
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Someone's firstborn is their first child. 头生子女
noun [专属名词] 长子；初生儿；长女
She was my firstborn. 她是我的长女。
adjective [原级] 头生的；第一胎生的
Firstborn sons received preferential treatment. 长子们受到了优等待遇。
