arc of a circle
collocation圆弧
Use a compass to draw the arc of a circle.
用圆规画一段圆弧。
弧；圆弧；曲线
先理解核心含义，再看它在真实句子里的用法。
弧；圆弧；曲线
a continuous part of a circle or other curve; any curved line
The bridge formed a graceful arc over the river.
那座桥在河面上形成了一个优美的弧形。
天体视运动经过地平线上下时所对应的圆周弧段
That part of a circle which a heavenly body appears to pass through as it moves above and below the horizon.
电场中气体的导电
electrical conduction through a gas in an applied electric field
圆周(圆弧)或其他曲线的连续一段
A continuous part of the circumference of a circle (circular arc) or of another curve.
圆的一部分
a continuous portion of a circle
An electric arc was produced between the two electrodes.
两个电极之间产生了电弧。
The rainbow stretched in a colorful arc across the sky.
彩虹在天空中伸展成一条彩色弧线。
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圆弧
Use a compass to draw the arc of a circle.
用圆规画一段圆弧。
电弧
The electric arc melted the metal instantly.
电弧瞬间熔化了金属。
弧光灯
An arc lamp once illuminated the harbor.
一盏弧光灯曾经照亮了港口。
电弧焊
Arc welding requires a powerful electric current.
电弧焊需要强大的电流。
历史的发展轨迹；历史之弧
The arc of history is long, but it bends toward justice.
历史的发展轨迹是漫长的，但它会趋向正义。
故事弧线；情节的发展脉络
The season ends with a satisfying story arc.
这一季以一个令人满意的故事弧线结束。
角色成长弧线；人物性格发展轨迹
Her character arc from villain to hero is the heart of the movie.
她从反派到英雄的角色成长弧线是这部电影的核心。
道德宇宙的弧线很长，但它弯向正义。
Martin Luther King Jr. made this phrase famous, often quoting the 19th-century abolitionist Theodore Parker; the word 'arc' here suggests history's long curve toward justice.
马丁·路德·金让这句话广为流传，他常引用19世纪废奴主义者西奥多·帕克；这里的“arc”意指历史朝向正义的漫长曲线。
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arc 就像一张弓，字母 A 和 C 是弓的两端，中间 R 是弯曲的弓身，所以 arc 表示弧线。
语域：mixed 常见场景：几何/数学、天文学、电学/物理、日常弧形物体 arc 作名词时，语域会随使用领域变化：在几何、天文、电学等专业语境中，它多作为正式术语使用；在日常描述弧线或弧形物体时，语气则比较中性。由于缺少单一默认语域，这里标为 mixed。
常用于 an arc of ... 结构
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.