Not so many years ago this house was full of life.

没过多少年的这个屋子就充满了生命。

youdao

Many years ago, pollution was not so serious because there were not so many people.

许多年前，严重污染因为没有这么多人。

youdao

Many years ago, pollution was not so serious because there were not so many people.

许多年前，严重污染因为没有这么多人。

youdao