Perimeter arc
[医] 视野计弧
🧩 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
Yes, I am.
是的，我是。
A good head and an industrious hand are worth gold in any land.
聪明脑袋勤劳手，走遍天下贵如金。
Thanks for the party last Sunday. I enjoyed it very much.
感谢你上个星期天的聚会。我非常快乐。