The first thing that the enemy did when they conquered the town was to haul down the citizens flag and raise their own. 敌人占领这所城市以后所做的第一件事就是降下该城人民的旗,升起他们自己的旗。
The first thing that we did when we conquered the town was to haul down the enemy's flag and raise our own. 我们占领这座城市以后以后所做的第一件事就是降下城里敌人的旗帜,升起我们自己的旗帜。