Secant
a. 正割的\\nn. 割线, 正割
🗣️ 情景例句
His appearance is impressive.
他的外表给人印象深刻。
I asked him to leave immediately, but he wouldn't.
我请他马上离开，但是他不肯。
A shoal of fish will do this.
鱼群也反射声音。