Arccosecant
un. 反余割
🗣️ 情景例句
She is my everything
她是我的一切。
I think that should do it.
我想这样就可以了。
I made your birthday cake last night, when you were in bed, Mrs Read answered.
“昨天晚上你睡觉时，我就做好了你的生日蛋糕，”里德夫人回答说。