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law 法律 the system in which the oldest son in a family receives all the property when his father dies 长子继承权 - (formal)
the fact of being the first child born in a family 长子身份；长嗣身份
Word Originearly 17th cent.: from medieval Latin primogenitura, from Latin primo ‘first’ + genitura ‘geniture’ (a person's birth).