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Public maintenance project
[아주 쉬운 뉴스 Q&A] What is a public maintenance project?
![[아주 쉬운 뉴스 Q&A] What is a public maintenance project?](https://image.ajunews.com/content/image/2021/01/20/20210120120640138465.jpg "[아주 쉬운 뉴스 Q&A] What is a public maintenance project?")