Agree or disagree：physical exercise is important to older people than to younger people
20100131、20110731Physical exercise is more important for older people than for younger people.
20081212Sports and exercises are more important to elderly people than to young people.
从形式上可以参考2018.2.4（2016.5.29）it is better for older people to take risks and explore new things than young people.
ngement， stone上的straight lines，writing ape methord和欧洲相似
1.可能有什么move了stone form their original location，ing style可能是accident3.美国人reshape jewelry时候也用的这种方式。