按照习惯，年轻的新娘在青春期前应该住在家里，到第二次仪式时再把她交给她的丈夫。
By tradition, the young bride is expected to live at home until puberty, when a second ceremony transfers her to her husband.
在非裔美国人中，这种趋势更加突出：女孩在八岁就到了青春发育期，有一些甚至就在入学第二年，六岁就来了。
Among Afro-Americans, the trend was even more pronounced: girls were hitting puberty at eight. Some were getting there at six, just a year after starting school.
7岁之前容易掌握第二语言，青春期之后这种能力明显逐渐下降。
While new language learning is easiest by age 7, the ability markedly declines after puberty.
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