Arc statndard
[電] 弧標準
?? 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
Thanks. But I have a question.
謝謝。但我想問一下
A man is not good or bad for one action.
判斷人的好壞不能憑一次行為。
It was very dark, so they turned on a torch.
飯廳很暗，于是他們打開了手電筒。