It's over 2,000 years old and more than 4,500 miles long.

It's over 2,000 years old and more than 4,500 miles long.
It's over 2,000 years old and more than 4,500 miles long.

It's over 2,000 years old and more than 4,500 miles long.
它有将近200年的历史,长于4500米.

这是超过两千年之久,超过4500英里长

它有4500多里长，2000多年历史。