archedadj.拱形(结构)的；有拱的动词arch的过去式和过去分词形式.archn.拱；拱门；拱状物v.成拱形；拱起adj.主要的；调皮的arch-criminal罪魁祸首arch of a swing弧形摆arched abutment拱式桥台arch of triumph凯旋门archegoniophore颈卵器托arch of furnace窑拱arched eyebrows娥眉,蛾眉Archichlamydeae离瓣花亚纲Archips limatusn.亮黄卷蛾arch dam design拱坝设计