This often exists in a man of 60 more than doy of 20.

与20岁的青年相比，这一现象更常见于60岁的老人中。

youdao

This often exists in a man of 60 more than doy of 20.

与20岁的青年相比，这一现象更常见于60岁的老人中。

youdao