我为你修改吧.谈多无意义.
The Emperor,who wanted to protect his country from the powerful enemy,was determined to repair and restore the Great Wall.
皇帝为了想要从强大的敌人中保卫他自己的国家,所以决定修复和恢复长城.
[建筑物只能用restore 和repair,不能用renovate]
At that time it was known as ShanHai Pass,which the first of the Heavenly close,was already in disrepaired/dilapidated condition after so many years.
当时被称为ShanHai关经过无数岁月早已经处于破旧不堪的状况了.