arch
noun [ C ] uk/ɑːtʃ/ us/ɑːrtʃ/
(CURVED STRUCTURE)
C2 拱;拱形结构;拱门（或窗、顶、洞等）
a structure, consisting of a curved top on two supports, that holds the weight of something above it
In many churches the side aisles are separated from the central aisle by a row of arches. 很多教堂中，侧廊与主廊之间都有一排拱门相隔。
Passing through the arch, you enter an open courtyard. 穿过拱门，你就到了天井中。
The vines were trained over an arch, providing shade as well as fruit. 葡萄藤整修成拱形，既能遮荫又能结果。
The temple's grand white arches rose conspicuously over the dirty decaying city. 寺院洁白雄伟的拱门十分显眼地矗立在肮脏破败的城市上方。
The abbey is known for its majestic arches, fine doorways and elegant windows. 这座修道院因为其威严的拱门、精美的门廊和雅致的窗户而闻名。
The town is dominated by the massive arches of a viaduct. 高架桥巨大的拱洞在这座小镇中十分显眼。
See also: archway
(SHAPE)
（常用作装饰的）拱形，拱形物
something that has the shape of an arch, often used for decoration
The boat floated through the arch of the trees towards the bridge. 小船穿过两岸的树木向小桥漂去。
(FOOT)
足弓，足背
the raised curve on the bottom of your foot
She has very high arches. 她足弓很高。
(BODY)
medical specialized弓（身体中曲线形或弧形的结构）
any organ or part of the body that is curved in shape
The premature loss of primary teeth causes shrinking of the dental arch. 乳牙提前掉落会引起牙弓萎缩。
arch
verb [ I or T ] uk/ɑːtʃ/ us/ɑːrtʃ/
C2 （使）拱起;（使）成拱形
to make the shape of an arch
Trees arch over the river. 两岸的树木在河面上交织成拱形。
Her eyebrows arched in contempt. 她蔑视地挑起双眉。
She watched the cat arch its back. 她看着猫弓起背。
arch
adjective uk/ɑːtʃ/ us/ɑːrtʃ/
淘气的;调皮的
showing that you think it is amusing that you know more about something than someone else does
an arch tone of voice 调皮的口吻