Secant
a. 正割的\\nn. 割线, 正割
🗣️ 情景例句
It's such an important decision.
这是一个如此重要的决定。
Misfortunes tell us what fortune is.
经过灾难方知福。
How would you go to Beijing, by air or by train?
你怎样去北京，是乘飞机还是坐火车？