After the flood, the villagers had to re-build the bridge that was washed away.

re-build 由前缀 re-（表示"重新"）和动词 build（建造）组成，字面意思是"重新建造"。 build 的意思是"建造、修建"，指用材料构造建筑物或其他结构。 re-build 指在原有结构被破坏后再次进行建造，即"重建"。