色欲tv国产亚洲_久久午夜夜伦鲁鲁影院_一级特黄无码A片在线观看_免费黄色性感一级片_国内破女处破苞视频hd_欧美三级少妇免费_亚洲美腿丝袜福利一区_白丝秘书被躁到高潮视频av_91麻豆精品分享的内容是很丰富的_国产原创免费av网站

arc

英 [ɑ?k] 美[ɑrk]
  • n. 弧(度);弧光(全稱electric arc);弧形物;天穹
  • adj. 圓弧的;反三角函數(shù)的
  • vt. 形成電?。蛔呋【€
  • n. (Arc)人名;(法)阿爾克

CET6TEM4IELTSTOEFL低頻詞常用詞匯

詞態(tài)變化


第三人稱單數(shù):?arcs;過去式:?arced;過去分詞:?arced;現(xiàn)在分詞:?arcing;

助記提示


1、arc- => arc.

中文詞源


arc 弧

來自PIE *arku, 彎,拱。

英文詞源


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.

雙語例句


1. A group of actors are rehearsing a play about Joan of Arc.
一群演員正在排演一出關(guān)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(quán)威詞典》

5. Joan of Arc was burnt at the stake .
圣女貞德被處以火刑。

來自《權(quán)威詞典》