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
How much does a return ticket cost?
返程票多少钱？
Sorry to bother you.
抱歉打扰你。
The snake, however, continued to 'dance' slowly.
然而那蛇却还是缓慢地“舞动”着。