No one knows for sure why adolescence is unique to humans.
没人确切知道为什么青春期是人类独有的。
Some young people who were easy-going and extroverted as children become self-conscious in early adolescence.
一些在孩提时候随和且外向的年轻人在青春期初期变得害羞了。
Most adult cases of clinical depression first emerge in adolescence.
大多数成人临床抑郁症病例最初在青春期出现。
Your goal should be to teach them these lessons over the course of their childhood and adolescence.
你的目标应该是在他们的童年和青少年时期教会他们这些课程。
As we leave adolescence behind and enter adult life, no one can teach us how to fall in love and get married.
当我们走出青春期、进入成年生活，没人会教我们如何爱上他人并结婚。
The United States Department of Justice showed that one out of four kids will be bullied during their adolescence.
美国司法部表示，四分之一的孩子在青春期会遭到霸凌。
The world's smartest adolescence in mathematics and science are Singapore, according to a global survery of educational achievement.
一项全球教育成就调查显示，全世界在数学和科学方面最聪明的青少年是新加坡的。
Most mammals reach sexual maturity when their growth rates are in recession, while humans experience a growth spurt during adolescence.
大多数哺乳动物达到性成熟时，它们的生长率处于衰退状态，而人类则在青春期经历性成熟的激增。
None of these legal provisions determine at what point adulthood has been reached but they do point to the prolonged period of adolescence.
这些法律条文没有规定什么时候已经到了成年期，但是他们确实指出了延长的青春期。
My own research at the Stanford Center on Adolescence uses in-depth interviews with small samples of youngsters rather than large-scale surveys.
我个人在斯坦福青少年研究中心的研究采用的是对小样本的青少年进行深入访谈的方式，而不是大规模的调查。
However, now they are becoming an extended period of adolescence, during which many of today's students and are not shouldered with adult responsibilities.
然而，现在他们青春期正在延长，许多今天的学生并没有肩负起成人的责任。
No one wants to go through adolescence again.
没人想再一次经历青春期。
Much education in adolescence is learning from mistakes.
孩子在青春期所获得的教育，大部分都是从错误中学到的。
From early adolescence, we are taught to be on our guard and vigilant at all times.
在青春期前期，我们一直被告诫要保持警惕。
But for you and your teen, the traps of adolescence are all too real and treacherous.
但是对你们和你们的孩子来说，所有青春期的陷阱都是切切实实、危险无比的。
Even years later in adolescence, those children were still 10 points ahead in I.Q..
甚至过了很多年到了孩子的青春期，有早期教育孩子的智商还领先10点。
Caitlin, 28, from Manchester, has struggled with mental health problems since adolescence.
凯特琳今年28日，老家在曼切·斯特，从青春期开始，她便与精神健康问题作斗争。
We also know that the social stigma associated with obesity is strongest during adolescence.
我们还知道，与肥胖相关的社交污点效应在青少年阶段最为强烈。
These Bobos are just normal middle-class people who are living out a protracted adolescence.
这些“波波”们只不过是一群延长着青春期生活的普通中产阶级。
I read The Grapes of Wrath in that fierce span of adolescence when reading was a frenzy.
在阅读盛行的时候，在青春的狂热岁月里，我阅读过《愤怒的葡萄》。
It then reverses course and thins out, losing neurons as the brain matures through adolescence.
然后再青春期时大脑外皮层又发生逆变化——变薄，并损失掉一些神经元。
The good news about acne is that it usually gets better or disappears by the end of adolescence.
好消息是，在青春期结束的时候，青春痘都会变得不严重，或者消失。
As children grow into adolescence, they tend to place a great deal of focus on their appearance.
当孩子长大成为青少年，他们会过多关注自己的外表。
Experts say that eating disorders usually emerge during adolescence and other times of transition.
专家说饮食失调症常出现在青少年时期和其他转型时期。
The period known as adolescence is a significant time of change for the individual experiencing it.
青少年时期是对于经历过它的个体的改变来说是一个重要时期。
Many kids announce the onset of adolescence with a dramatic change in behavior around their parents.
很多孩子进入青春期，首先会在对待父母的态度上出现巨大变化。
During much of her adolescence, she felt like an outsider and experimented with radical self-packaging.
在她的青春期，她感觉自己像个门外汉，于是就完全以包装自己作为实验。
Illicit drug use in the United States, as in Britain, is very common and usually begins in adolescence.
在美国，就像在英国一样，药物的非法使用十分常见，而且往往开始于青春期。
We all like new and exciting things, but we never value them more highly than we do during adolescence.
人都喜欢新鲜刺激的事物，但只有青春期时才如此看重这些。
We all like new and exciting things, but we never value them more highly than we do during adolescence.
人都喜欢新鲜刺激的事物，但只有青春期时才如此看重这些。
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