Another way of describing people is by age.

描述某个人的另一种方法是说他的年龄。

Back then, scattered reports began to appear in medical journals describing people acting out movements in their dreams.

那时，医学杂志上开始零星出现描述人在睡梦中“表演”动作的报告。

Back then, scattered reports began to appear in medical journals describing people acting out movements in their dreams.

那时候，医学期刊上开始有零星报道指出人会把梦中的运动表现出来。

Another way of describing people is by age. People can be young, middle-aged, or old. People don't see age in the same way, however.

描述某人的另一种方法是通过年龄。人有年轻的、中年的或者老年的，但是人们看待年轻的方式不一样。

For example, among ancient French cave drawings earlier than 10,000 B.C., there were no pictures describing people fighting with each other.

举例来说，在早先的法国洞穴绘画里，早于公元前10,000年的绘画中没有人与人打仗的画面。