Arc cosine
反余弦
🧩 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;
cosine
['kəusain]
n. 余弦;
🗣️ 情景例句
Now, this is my idea of a good time.
这才是我所谓的享受。
A good wife and health is a man's best wealth.
贤妻和健康是男子的至宝。
I'm not sure whether I have locked the door.
我没把握是否锁了门。