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
That's very nice of you, but I really can't.
你太客气了，可我真的非走不可。
Doing is better than saying.
行胜于言。
For years we've been demanding better housing and jobs.
多年来我们一直要求改善住房和工作条件。