Arccosecant
un. 反余割
🗣️ 情景例句
I suggest you give her a call straight away.
我建议你立即打个电话给她。
How do you spend your leisure time?
你怎样打发业余时间？
the fear of death is somewhat abject and ignoble.
如果怕死；就有点儿可怜又可鄙。