中国文明是世界最古老的文明，而如今是最宏博的。

Chinese civilisation is the world's oldest and today, its largest, with well over a billion people.

youdao

中国文明是世界最古老的文明，而如今是最宏博的。

Chinese civilisation is the world's oldest and today, its largest, with well over a billion people.

youdao