Perimeter arc
[醫(yī)] 視野計弧
?? 詞語組成解析
arc
[ɑ:k]
n. 綜合癥狀;弧（度）;天穹;電弧，弧光。;
vi. 形成拱狀物;循弧線行進;
abbr. American Red Cross. 美國紅十字會;
??? 情景例句
Thank you very much, But I guess I'd better do it myself.
謝謝你，但我想我最好還是自己做。
In my opinion,the house isn't worth the price they're asking.
按照我的意見,房子不值他們正在問的價格。
Tom and I are going to have a holiday.
我和湯姆準備去度假。