城中街道不宽，这样街上的建筑互相遮阴，而且房屋的墙和房顶都各自发挥散热作用。

Streets are narrow so buildings shade each other, and the walls and roofs of buildings will do their bit to shed heat too.

youdao

两座敌楼相隔不超过120米，敌楼之间就可以起到互相保护的作用了。

At intervals of no more than 120 meters, the adjacent two ramparts were able to protect each other most effectively.

youdao

两座敌楼相隔不超过120米，敌楼之间就可以起到互相保护的作用了。

At intervals of no more than 120 meters, the adjacent two ramparts were able to protect each other most effectively.

youdao