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arc

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arc

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++arc /ɑːk $ ɑːrk/ ●○○ noun [countable]  1 CFBENDa curved shape or line 弧(状) the arc of a rainbow 彩虹的弧状2 BENDpart of a curved line or a circle 弧线;弧形 The Sun moves across the sky in an arc. 太阳在天空中以弧线方式运行。3. TEEa flash of light formed by the flow of electricity between two points 弧光,电弧arc verb [intransitive]
Examples from the Corpus
arcThe islands lie in an arc in the eastern Caribbean.They may also be decorated with dots, arcs, circles, triangles, stamped, notched or bear incised lines.Out past the northern arc of the perimeter highway, comfortable subdivisions have been carved under a leafy canopy.One often meets graphs in which the arcs have names too.
Origin arc (1300-1400) Old French Latin arcus bow, arch, arc
arc nounChinese
line a curved shape Corpus or


arc
arc /ɑːk $ ɑːrk/ noun [countable]
 Date: 1300-1400
 Language: Old French
 Origin: Latin arcus 'bow, arch, arc'
1. a curved shape or line:
    the arc of a rainbow
2. part of a curved line or a circle:
    The Sun moves across the sky in an arc.
3. a flash of light formed by the flow of electricity between two points
—arc verb [intransitive]


arcBrE /ɑːk/ 🔊NAmE /ɑːrk/ 🔊 noun
(geometry 几何) part of a circle or a curved line
a curved shape 弧形the arc of a rainbow彩虹的弧形The beach swept around in an arc. 海滩呈弧形伸展开来。🔊🔊(specialist) an electric current passing across a space between two terminals 电弧   see also arc lamp
arcBrE /ɑːk/ 🔊NAmE /ɑːrk/ 🔊 verbpresent simple - I / you / we / they arc BrE /ɑːk/ 🔊 NAmE /ɑːrk/ 🔊present simple - he / she / it arcs BrE /ɑːks/ 🔊 NAmE /ɑːrks/ 🔊past simple arced BrE /ɑːkt/ 🔊 NAmE /ɑːrkt/ 🔊past participle arced BrE /ɑːkt/ 🔊 NAmE /ɑːrkt/ 🔊 -ing form arcing BrE /ˈɑːkɪŋ/ 🔊 NAmE /ˈɑːrkɪŋ/ 🔊(specialist) [intransitive] to move in the shape of an arc 作弧形运动 [intransitive] to form an electric arc 形成电弧