同时，在这一年龄段中97%的受访者表示无法想象没有手机的生活。
Living without a mobile phone was also unthinkable for 97 percent of those questioned in that age range.
在这一年龄群中，有孩子的管理工作者更容易遭受睡眠不足的折磨。
Among that age group, people with young children and managerial jobs were most likely to suffer.
假如母亲在15 - 20岁之间怀孕，那么她的女儿也很可能在这一年龄怀孕。
If a mother was a teen parent, the teenage daughter is more likely to become pregnant as a teen herself.
只要在这一年龄段内，无论是中国人、美国人还是意大利人，对我来说都是一样的。
For me, there's no difference between a Chinese, American or Italian of the same age.
正是因为在这一年龄组出生的婴儿存活率仅有30%左右，所以能给这些孕妇明确地诊断感染就至关重要。
Because only about 30 percent of infants in this age group survive their early birth, it is extremely important to be able to accurately diagnose infection in these women.
Youtube的用户中，尤其是19岁以下的用户，对youtube的忠诚度极高；在15～19岁的男性群体中，此类人所占比例高达69%，而在这一年龄段的女性人群中则占到了66%，他们只将Youtube作为他们访问的唯一视频站点。
YouTube users, especially those under 19, are extremely loyal to YouTube; for 69% of all males 15-19 and 66% of all females in this age group, YouTube is the only streaming video site they ever visit
Youtube的用户中，尤其是19岁以下的用户，对youtube的忠诚度极高；在15～19岁的男性群体中，此类人所占比例高达69%，而在这一年龄段的女性人群中则占到了66%，他们只将Youtube作为他们访问的唯一视频站点。
YouTube users, especially those under 19, are extremely loyal to YouTube; for 69% of all males 15-19 and 66% of all females in this age group, YouTube is the only streaming video site they ever visit
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