The length of the wall is 4,018 meters , their average height is 12meter , and the average thickness is 2.5 meters(8.5 feet) . The walls contain 34 watchtowers and seven main gates open for traffic,with two minor gates reopened by archaeologists.."
The language must be appropriate to the audience and should use the terms that are most current and ordinary. Using fancy language is not ordinary, and any kind of unfamiliarity can be seen as suspicious.