The community fundraising successfully gathered money for the church-building project.

church-building 是由名词 church（教堂）和动名词 building（建造）组成的复合名词，building 来自动词 build（建造）加上 -ing 后缀。church-building 合起来表示“教堂建造”或“教堂建设”，指建造教堂的项目或活动。