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
How...?
你怎么……？
Ill air slays sooner than the sword.
污浊的空气杀人比刀还快。
I have known very few writers, but those I have known,
我所认识的作家寥寥无几，然而凡是我所认识