Cosec
n. 余割
📖 牛津释义
cosec
abbr
缩写 = cosecant.
🗣️ 情景例句
You're just wasting your breath.
你在白费口舌。
I ask him to tell me everything he thought.
我要求他告诉我，他所想得每件事情。
Thank you, Mr. Robert.
谢谢，罗伯特先生。