在清朝统治下，中国的边界一直延伸到长城之外和蒙古，所以建造和维修长城的工事被停止。

Under Qing rule, China's borders extended beyond the walls and Mongolia was annexed into the empire, so construction and repairs on the Great wall were discontinued.

youdao

在清朝统治下，中国的边界一直延伸到长城之外和蒙古，所以建造和维修长城的工事被停止。

Under Qing rule, China's borders extended beyond the walls and Mongolia was annexed into the empire, so construction and repairs on the Great wall were discontinued.

youdao