Length of arc
[化] 弧长
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
arc
[ɑ:k]
n. 综合症状;弧（度）;天穹;电弧，弧光。;
vi. 形成拱状物;循弧线行进;
abbr. American Red Cross. 美国红十字会;
🗣️ 情景例句
How about going out for a bit to eat?
去吃点东西怎么样？
Where can I make a reservation?
我到哪里可以预订？
He had lived in it as a child when it was already disappearing,
作为一个孩子他曾在西部生活过，当时西部拓荒生活正在消失。