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
Let's give him our presents--now.
现在把我们的礼物送给爷爷吧。
Don't open your book.
别打开书。
The radio says the snow will stop later in the day.
无线电广播说 今天晚些时候雪会停的。