1. C 拱，拱门　 top or two supports, e. g. under a bridge or a church roof or above a door or window
2. C 拱形物　 sth with this shape

　arch　的基本意思是“拱，拱门”，用于比喻则表示“拱形物”。

　memorial ～　纪念牌坊
　～ bridge　拱桥
　～ dam　拱坝
　～ roof　拱形屋顶
　blue ～ of the sky　苍穹

　The bridge had seven arches.　这座桥有七个拱洞。
　Arches are built of wood, stone, brick or any other building material.　拱门是用木料、石块、砖头或其他建筑材料建成的。
　He is cursed with deformed arches.　他受畸形足弓之苦。

 ♣ arch, arc, bow, curve
　参见arc条。

　vt. & vi.（使）弯成拱形 (cause to) form into an arch

　～ one's eyebrows　拱起眉毛
　～ the back　拱起背

　The trees arch overhead.　树木在头顶上弯成拱形。
　A bright rainbow arched above.　一弯明亮的彩虹悬挂在天空。
　The cat arched her back when she saw the dog.　猫看见那只狗时拱起了背。

　（指神情、声调等）调皮的，淘气的　an arch look, tone of voice, etc. deliberately shows amusement because the person knows more than other people or more than they pretend about a situation

　～ expression　调皮的笑容
　～ gesture　调皮的手势或姿势
　～ look　鬼脸
　～ smile　淘气的笑容
　～ tone　淘气的语调

　He tapped the side of his nose in an uncharacteristically arch gesture.　他轻叩鼻侧，做了个不常见的调皮手势。
　She was rather arch in her behaviour.　她的举止有点淘气。

　［派生词］ arched adj.拱形的；拱起的‖archly adv.调皮地
　［同义词］ n. bend, bow v. bend, curve adj. elvish, naughty, piquant
　［词源］古法语arche<拉丁语arcus（拱，拱形）