Extremal arc
[计] 极值弧
🧩 词语组成解析
[计] 极值曲线
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
and to read along with the children--their children.
和孩子们--他们的孩子们， 一起阅读。
Don't you have a heart?
你有没有良心啊？
who has beenworking or worrying about serious things for six days,
为严肃的公务操劳或烦恼了6天的