1. Iron deficiency is very common among women in general, affecting one in four female teenagers and one in five women aged 18 to 45, respectively.
    缺铁在多数女性中是很常见的，十多岁的少女四人中有一人缺铁，18至45岁的女性五人中有一人缺铁。

2. In Wolf's study, published in May 1996, 215 seniors aged 70 to 96 were divided into three groups.
    在沃尔夫1996年5月发表的研究中，215名70至96岁的老人被分成三组。

3. Who studied 301 men and women aged 70 and older with at least one risk factor for falling, such as muscle weakness or use of certain medicines.
    她调查了301名70或70岁以上的男女，他们都至少有一种导致摔跤的风险因素，如肌肉无力或使用某些药物等。

4. I found myself suspended in the middle of the air — held up by a 130-kilometer-an-hour blast of wind coming from an industrial-strength fan in the bottom of the tower.
    我发现自己悬在了空中--高塔底部一架工业用强力风扇吹出时速达130公里的风柱将我拖起。

5. From out of this grayness, two figures approach us — an unremarkable middle-aged man and woman —
    有两个人影从这一片灰色中走近我们——一个不起眼的中年男子和一个女人。

6. For middle school students: a zero or no grade on the assignment or the test on which the student cheated.
    中学生作弊：作弊的那次作业或考试作零分计或不给分；