In 1950 a British paediatrician, Dr James Tanner, introduced a system for mapping the five stages of puberty in boys and girls.
1950年，英国儿科专家詹姆斯•谭纳(JamesTanner)提出一个体系，把男女孩青春期划分为五个阶段。
Catharines, Canada, reported a link between absent fathers and early puberty in boys and girls in in 2005 in the Journal of Adolescence.
他2005年曾在JournalofAdolescence 上报道了父亲缺失与男孩和女孩早熟之间的一个关联关系。
Girls have a growth spurt that slows down with the onset of their first period (for boys, weight and height come in the final stages of puberty).
女孩在首次例假会经历发育激增，之后才会放缓(对男孩来说，体重与身高处于青春期发育最后阶段)。
But after puberty boys catch up and excel in mathematical reasoning as testosterone boosts their spatial ability.
但进入青春期后，由于睾酮增加了男孩的空间能力，他们不但迎头赶上，而且还擅长数学推理。
Puberty has been known, rarely, to start before 8 in girls or age 9 in boys.
我们已经知道，青春期很少开始于八岁(女孩)或九岁(男孩)之前。
The period between childhood and the onset of puberty, often designated as between the ages of 10 and 12 in girls and 11 and 13 in boys.
从儿童到青春期开始这段时间，年龄上女孩通常认为是从10岁到12岁，而男孩则通常从11岁到13岁。
The period between childhood and the onset of puberty, often designated as between the ages of10 and12 in girls and11 and13 in boys.
青春前期从儿童到青春期开始这段时间，年龄上女孩通常认为是从10岁到12岁，而男孩则通常从11岁到13岁。
Puberty for boys is the stage in life when they become men.
青春期是男孩们成长为男人的人生阶段。
I've never been much interested in sports, ever since I stopped playing 1 touch-football with the boys, when I hit 2 puberty. I've tried tennis.
到了青春期，我不再和男孩们玩触身式橄榄球，之后，我一直对运动没多大兴趣。
I've never been much interested in sports, ever since I stopped playing 1 touch-football with the boys, when I hit 2 puberty. I've tried tennis.
到了青春期，我不再和男孩们玩触身式橄榄球，之后，我一直对运动没多大兴趣。
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