sindexsemiarch./sem-ee-ahrch, sem-ahy-/US // ˈsɛm iˌɑrtʃ, ˈsɛm aɪ- //半拱门,半拱桥,半拱形,半拱形结构Definitionsn.noun · 名词1.›a half arch. Level 4More words in s →