Arcsec
abbr. arcsecant 反正割
🗣️ 情景例句
but there must be a way
但总该有一个办法
In my opinion,that's an excellent idea.
按照我的意见,那是一个极好的想法。
It's nearly ready.We can have dinner at seven o'clock.
马上就好。7点钟我们可以吃饭。