a teen-age set
一批十几岁的青少年
a teenage boy worried about his spots, ie acne
因出粉刺而烦恼的十几岁的男青年
Many teenagers love his book.
很多十几岁的青少年都喜欢读他的书，
She angled her column of chitchat toward teenagers.
她的漫谈栏侧重于十几岁的青少年。
especially teenagers,
特别是对十几岁的青少年来说，
Why do teenage girls giggle so much?
为什么十几岁的女孩那么喜欢傻笑？
He had decided at the age of ten to dedicate himself to his country's cause.
他在十几岁的时候，就决定以身许国。
Middle school students are all teenagers.
中学生都是只有十几岁的青少年，
Since his parents died early, he had to earn his own living when he was a teenager.
他十几岁的时候就不得不独自谋生。
He's been working in the tea business since he was a teenager.
他十几岁的时候就投身于茶业了。
Teenagers don't like being regimented.
十几岁的青少年不喜欢被严格管教。
For men in their fifties, their chance of fathering an autistic child is 9 times the risk of men in their teens and twenties.
50多岁的男子，他们抚育出自闭症儿童的可能性是十几岁和二十几岁的男子的9倍。
The influence of fashion grows stronger as the teen years approach. Wearing the right brand- name clothing is often very important to the teenager.
在他们十几岁之后,时装的影响会变得更大,对于十几岁的孩子来说,穿名牌服装是十分重要的。
Sharp drops in participation are seen between young girls（6-12） and teen girls（ age13-17）.
年轻女孩（6-12）十几岁的女孩（13-17岁）户外运动参与者急剧下降。
the typical (or normal) American; typical teenage behavior.
典型的（或正常的）美国人；典型的十几岁的行为。
How old is your sister? She is thirteen years old.
你的姊妹几岁？她十三岁。
How old are you? I am twelve (years old).
你几岁？我十二岁。
How old are you? I am ten.
你几岁了？我十岁了。