柯林斯词典adulthood /ˈædʌltˌhʊd/ 1. N-UNCOUNT Adulthood is the state of being an adult. 成年 Few people nowadays are able to maintain friendships into adulthood. 现今很少有人能够把友谊维持到成年。 返回 adulthood剑桥词典the part of someone's life when they are an adult 成年（时期） People in England legally reach adulthood at 18. 在英国，年满18岁的人为法定成人。 Responsibility, I suppose , is what defines adulthood. 我想，成年就意味着责任。 返回 adulthood