喜樂美語

核心畫面

You can picture the edge of a bent bow, or a slice cut from the rim of a circle — a smooth, curved line that leans the same way all along, never a straight run and never a sharp corner.

可以想成：一張拉彎的弓的邊緣，或是從圓的邊上切下的一小段——一條平順的曲線，從頭到尾都朝同一邊彎，不是直線，也沒有尖…更多收起可以想成：一張拉彎的弓的邊緣，或是從圓的邊上切下的一小段——一條平順的曲線，從頭到尾都朝同一邊彎，不是直線，也沒有尖角。arc 的核心畫面比較像這個「圓邊上的一段彎」。

From the word’s history

From Latin arcus 'a bow, an arch', via Old French arc. The word first named the curve of a bow and the sun's curved track across the sky — so its root is literally the bend of a drawn bow, which is still the core picture today.

源自拉丁文 arcus「弓、拱」，經古法文 arc 進入英文。這個字最早指的就是弓拉彎後的那道弧、以及太陽劃過天空的彎曲軌跡——它的根本就是「一張弓彎起來的線」，這也正是今天的核心畫面。

etymonline.com/word/arc (Latin arcus 'bow, arch', Old French arc); Wiktionary arcus

Two branches

弧形與弧線

核心畫面本身：圓邊上的一段彎。這一組把它用兩種方式看——當成一個靜止的形狀，或當成一個東西沿著走出來的路徑。

curved shape · noun · B2

A curved shape or line, like part of a circle or a gentle bend.

弧 / 弧形

電弧 / 弧光

這個專門的用法還是回到「彎」這個畫面：電從一點跳到另一點時，那道明亮的光並不是直的，而是彎成一道弧,所以就借用了 arc 這個字。

electric arc · noun · B2

A bright flash or line of light made when electricity jumps between two points.

電弧 / 弧光

原始詞典資料21 筆記錄

以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。

ARCname詞源 2

  • 1

    governmentmilitarynauticalThe Colombian Navy (Armada de la República de Colombia).

ARCadj詞源 2

  • 1

    governmentmilitarynauticalA ship's prefix for warships of the navy of Colombia.

Arcname

  • 1

    historicalA suggested location where the historical figure Joan of Arc, or her father, were from.

arcnoun/ɑːk/

  • 1

    astronomynatural-sciencesThat part of a circle which a heavenly body appears to pass through as it moves above and below the horizon.

  • 2

    geometrymathematicssciencesA continuous part of the circumference of a circle (circular arc) or of another curve.

    • The arc of a circle may be very little, but, given that, it is possible to construct the entire figure.
  • 3

    A curve, in general.

    • Swing it from side to side in a high arc overhead.
    • an arc of pupils around their teacher.
  • 4

    A band contained within parallel curves, or something of that shape.

  • 5

    A flow of current across an insulating medium; especially a hot, luminous discharge either between two electrodes or as lightning.

  • 6

    human-scienceslinguisticsnarratologyEllipsis of story arc.

    • I'm hitting the gym three times a week or more at the moment. I'm in my gym bro arc.
    • I miss my drawing arc. I feel like I was much more creative back then.
  • 7

    mathematicssciencesA continuous mapping from a real interval (typically [0, 1]) into a space.

  • 8

    graph-theorymathematicssciencesA directed edge.

另外 2 個記錄的用法
  • 9

    slangball-gamesbasketballgamesThe three-point line.

  • 10

    broadcastingfilmmediaAn arclight.

    • For all practical purposes the old carbon arcs, which were the backbone of film lighting, are no longer used.

arcverb/ɑːk/

  • 1

    To move following a curved path.

    • A warring bloodhunter detected it and skillfully arced his sword through its spinal column before it could return to follow through with its attack.
    • Gatland's side got back to within striking distance when fly-half Jones's clever pass sent centre Jonathan Davies arcing round Shontayne Hape.
  • 2

    To shape into an arc; to hold in the form of an arc.

    • His mother, her eyes raised to heaven, hands arked before her, moving, made real for John that patience, that endurance, that long suffering, which he had read in the Bible and found so hard to image.
  • 3

    To form an electrical arc.

這個拼法也被記錄為下列字的變化形：

資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。