Studies have shown that 4 percent of 6 month olds , and 12 percent of 12 month olds are iron deficient .
研究显示,百分之四的六个月儿童,和百分之十二的一岁儿童会出现铁缺乏。
A shift in education patterns was a factor in the pew report , which polled u.s. - born 30 - to 44-year olds .
皮尤报告中提到,在接受调查的30至44岁的美国人中,教育模式的转变是原因之一。
The emphasis now is on encouraging pupils to think for themselves , and to develop flexible learning skills that will enable 60 % of 18-30 year olds to be in tertiary education by 2010 .
Olds , and everyone else , assumed he 'd found the brain 's pleasure center ( some scientists still think so ) .
olds和每一个人都在猜测他们找到了大脑的快乐中枢(一些科学家任然这么认为)。
This suggests that even twelve year olds realize that this is what makes them better , that success isn 't easy .
这意味着,即便是12岁的小孩也能认识到是何种原因使他们拥有了更好的表现,成功实在来之不易。
Personally , I do think some have features looking too young to be that of sixteen year olds .
就我个人而言,我确实认为有些人看上去太小还不到16岁年龄。
That 's three 16 year olds all hoping to be the future of chelsea .
这三名16岁球员都是切尔西未来的希望。
Instant messaging applications for mobile devices , such as blackberry messenger , are becoming so popular that use of text messages by 15-24 year olds will fall by a fifth in many large markets including the uk , analysts predict .