The National Longitudinal Survey of Youth 1997 interviewed people between the ages of 13 and 17 in 1997 and continues to interview the same people each year since then.
国家青年跟踪调查组织在1997年采访了处于13到17岁年龄段之间的人群，并且之后每年都跟踪采访调查对象。
Over half of new HIV infections worldwide are occurring among young people between the ages of 15 and 24, and more than 60 per cent of HIV-positive youth in this age bracket are female.
全世界HIV的新增感染者中有一半是15 -24岁的年轻人，该年龄段HIV检测阳性的年轻人中有60%是女性。
The products will be available for three youth categories: ages 3-6, 6-9 and 9-12.
新产品系列将会为三个年龄层准备，3-6岁，6-9岁以及9-12岁。
There are playthings for the al ages; the playthings of old people is to talk of the playthings of their youth.
每一个年龄都有玩具；老人的玩具是聊聊他们年轻时的玩具。
Did you know that today's American youth are displaying intolerant actions at alarming rates-and at younger and younger ages?
你知道，今天的美国青年展示了不能容忍的行动，在惊人的速度和在年轻化的年龄呢？
Method To analyse and statistics the data of the psychic clinic in 2004 finds youth common problems and individual problem at different ages.
方法对2004年的心理门诊资料作统计分析，找出他们的普遍问题和不同年龄段的特殊问题。
Method To analyse and statistics the data of the psychic clinic in 2004 finds youth common problems and individual problem at different ages.
方法对2004年的心理门诊资料作统计分析，找出他们的普遍问题和不同年龄段的特殊问题。
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