| 正面 | 6001.arc 英 [ɑːk]美 [ɑrk]     |
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| 背面 |     释义： 1、arc- => arc.n. 弧（度）；弧光（全称electric arc）；弧形物；天穹adj. 圆弧的；反三角函数的vt. 形成电弧；走弧线n. (Arc)人名；(法)阿尔克 例句： 1. A group of actors are rehearsing a play about Joan of Arc.一群演员正在排演一出关于圣女贞德的戏。 arc 弧来自PIE *arku, 弯，拱。 arcarc: see archarc (n.)late 14c., originally in reference to the sun's apparent motion in the sky, from Old French arc "bow, arch, vault" (12c.), from Latin arcus "a bow, arch," from PIE root *arku- "bowed, curved" (cognates: Gothic arhvazna "arrow," Old English earh, Old Norse ör; also, via notion of "supple, flexible," Greek arkeuthos, Latvian ercis "juniper," Russian rakita, Czech rokyta, Serbo-Croatian rakita "brittle willow"). Electrical sense is from 1821.arc (v.)1893, in the electrical sense, from arc (n.). Meaning "to move in an arc" attested by 1954. Related: Arced; arcing." |