Arc length
[计] 弧长
🧩 词语组成解析
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
You are a walking dictionary.
你是活字典。
He who shareth honey with the bear hath the least part of it.
与熊分蜜糖，得不到多少。
good-tempered elephant who will give many years of loyal service.
脾气温顺、能忠实为人服务多年的大象。