https://zh.apacode.com/post/chengyi-went-to-kinmen-for-sightseeing-and-found-a-famous-steel-knife-factory-he-heard-from-the-tour-guide-that-it-was-because-of-a-battle-in-kinmen-in-1958-which-was-bombed-by-more-than-474900-shells-in-just-44-days