Cosec
n. 余割
📖 牛津释义
cosec
abbr
缩写 = cosecant.
🗣️ 情景例句
I can tell.
我能觉察到。
Why don't you turn off the stupid program?
何不把无聊的节目关掉？
The last creature to compete with man was the mosquito.
能与人竞争的生物最后只有蚊子了，