Both the prenatal period and adolescence are critical times in brain development and smoking has been linked to memory and attention problems in teens 在孕期和青春期对于大脑的发育是关键时期，吸烟与十几岁的青少年在记忆力和注意力上出现的问题有关
They found that the faces of children and adults of middling years did seem to give away intelligence , while those of teenagers and the elderly did not 他们发现小孩的脸和中年人的脸确实看上去散发出一股聪明的气息，而十几岁的青少年和老年人的脸就没有。
They include teenagers like jason e . , a manic - depressive whose violence gives his father the choice of having him jailed or endangering his family 被拘留者还包括十几岁的青少年，如贾森? e ，患有狂躁性抑郁症，他的暴力行为使得他的父亲必须在送他进监狱或危及家人安全之间做出选择。
After all , how many people in 1990 predicted that teenagers tediously typing short text messages on mobile phones while riding buses would be an immense money maker for telephone companies in 10 years 毕竟，能有多少人在1990年预料到，十年后，十几岁的青少年在车上用手机发送冗长的文本短信会给电信公司带来巨额利润？
As teenagers , college students and young adults have flocked to the social networks , advertisers have increased their spending at those hip hangouts instead of older , all - purpose sites like yahoo 当十几岁的青少年、大学生和年轻人纷纷登陆社交网站时，广告商们已增加了他们在优势地区的投入，从而取代象雅虎这样的全方位网站。
For example , fans sharing public domain music or sample tracks that new bands have released for publicity purposes , families sharing photos , movies , and genealogical information , and teenagers playing multiperson on - line games 例如，乐迷共享收集的公域音乐或新乐队用于推销自己的样本音乐；家庭共享照片、电影及家族信息；十几岁的青少年玩多人在线游戏。
He said the most unusual aspect of the mexican trial is that the 12 teenagers were not given any drugs to suppress their immune systems , which would normally destroy any cells from other animals 他说，在墨西哥进行的试验中最不寻常的方面就是未向这12位十几岁的青少年投以任何药物以抑制他们的免疫系统，而正常情况下免疫系统会破坏来自其他动物的任何细胞。
The reasons behind the accident are not yet clear , but it seems the two teenagers climbed over a fence to recover some footballs that had fallen into the lake , which is 50m by 30m and 5m deep , after a christmas party 这次意外事故的原因仍然没有清楚,但看上去这两个十几岁的青少年是想爬过栅栏去捡回掉落湖中的几个足球,那个人造湖长50米宽30米,有5米深,事件发生在圣诞节晚会后
Then each one , from first graders to teenagers , received a pair of sneakers . along with the footwear , they also received stickers bearing masters image . most of the youngsters asked about the supreme master and wanted to receive more photos of her to place on their beds 从一年级的学童到十几岁的青少年，每个人都收到一双运动鞋，以及印有师父法相的贴纸，孩子们纷纷询问有关师父的问题，并希望得到更多师父的法相贴纸，以便贴在自己的小床上。
