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
Hello.
哈啰。
If you were to attend the banquet ,what would you wear?
如果你将出席宴会，你将穿什么？
Good morning, nurse.I was to see the dentist,please.
早上好，护士。我想见牙科医生。