Arc secant
反正割
🧩 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;
a. 正割的\\nn. 割线, 正割
🗣️ 情景例句
Oh, you'll do it. It's a piece of cake.
噢 你办得到的。这不费吹灰之力。
We are looking forward to your reply to our inquiry.
我们期待你方对我方的询盘做出答复。
Not at all! Please sit down, Mr. Green. Would you like a cup of tea?
没关系！请坐，格林先生。你喝茶吗？