adulthood
n. 成年，成人时期
例句
Is there a cut-off point between childhood and adulthood?
童年与成年之间有分界线吗？
《牛津词典》
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。
《柯林斯英汉双解大词典》
Parents want to know the best way to nurture and raise their child to adulthood.
父母们想了解把他们的孩子养育成人的最好方法。
