arc
复数形式
arcs
1
弧, 圆的一部分
(geometry) a part of a circle, which is curved
- In a circle, a minor arc is shorter than a major arc.
在一个圆中，弧的小弧比大弧短。
- The length of an arc can be calculated using the radius and the angle in degrees.
弧的长度可以使用半径和角度（以度为单位）来计算。
- In a pie chart, each section can be represented by an arc of the circle.
在饼图中，每个部分都可以用圆的弧来表示。
- When measuring an arc, it is important to identify the center of the circle.
测量弧时，确定圆心很重要。
2
3
electrical discharge that passes through a gas under the influence of an applied electric field
4
the main theme or continuous narrative line in a story or series
An arc, in the context of storytelling, refers to the main theme or the continuous development of a narrative from beginning to end. It describes how the story evolves and changes over time, often following a central storyline or emotional journey. For example, a character's personal growth or the progression of a central conflict throughout the story can be seen as an arc. This concept helps to structure the narrative and guide the audience through the various stages of the plot.