Cosec
n. 余割
📖 牛津释义
cosec
abbr
缩写 = cosecant.
🗣️ 情景例句
Have a safe trip back.
祝您平安返家。
Can I help?
要我帮忙吗？
The sad truth is that most of us have been brought up to eat certain foods and we stick to them all our lives.
不无遗憾的是， 我们中的大部分人，生来就只吃某几种食品，而且一辈子都这样。