• n. 弧（度）；弧光（全稱electric arc）；弧形物；天穹
• adj. 圓弧的；反三角函數的
• vt. 形成電弧；走弧線
• n. (Arc)人名；(法)阿爾克

來自PIE *arku, 彎，拱。

arc

arc: see arch

arc (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 ?r; 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.

1. A group of actors are rehearsing a play about Joan of Arc.

一群演員正在排演一出關于圣女貞德的戲。

來自柯林斯例句

2. Joan of Arc was finally canonized by Pope Benedict XV in 1920.

圣女貞德終于在1920年由教皇本尼狄克十五世封為圣徒。

來自柯林斯例句

3. His pass described a perfect arc through the leaden sky.

他的傳球在陰沉的天空中劃出了一道完美的弧線。

來自柯林斯例句

4. the arc of a rainbow

彩虹的弧形

來自《權威詞典》

5. Joan of Arc was burnt at the stake .

圣女貞德被處以火刑。

來自《權威詞典》