单词	arc
释义	noun | verb arcarc1 /ɑrk/ ●○○ noun [countable] Etymology ETYMOLOGYarc1 Origin: 1300-1400 Old French Latin arcus bow, arch, arc 1 a curved shape:  The islands lie in an arc in the eastern Caribbean.2math, geometry a smooth curved line that forms part of a circle or other curved shape3science, physics a flash of light formed by the flow of electricity between two points [Origin: 1300–1400 Old French, Latin arcus bow, arch, arc] → see also arc light, arc welding noun | verb arcarc2 verb [intransitive] 1[always + adv./prep.] to move in a smooth curved line:  The Space Shuttle arced high above the Atlantic after takeoff.2if electricity or electrical wires arc, they produce a flash of light because electricity jumps from one wire or object to another
随便看	tap water taqueria tar Tarahumara tarantella tarantula Tarawa tardily tardiness tardy target target cell target language target population Tar Heel tariff tarmac tarnish tarnished taro tarot tarp tarpaper tarragon tarry

英语词典包含48224条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。