柯林斯词典primogeniture /ˌpraɪməʊˈdʒɛnɪtʃə/ 1. N the state of being a first-born 长子身份 返回 primogeniture剑桥词典the custom by which all of a family's property goes to the oldest son when the father dies 长嗣继承权（或制） 返回 primogeniture