A couple of good old country boys are having a wild and woolly time.

几个乡下来的青年狂欢作乐一番。

China is a well known old country.

中国是世界闻名的文明古国。

India is an old country.

印度是一个古老的国家。

Ours is an old country.

我们的国家是一个古老的国家。

I don't think it is a very old country.

我认为它不是一个古老的国家。