Dual function
[计] 对偶函数
🧩 词语组成解析
dual
['dju(:)əl]
adj. 双的，两部分的，二体的，二重的;
n. 双数;双数词;
🗣️ 情景例句
I have an idea that may solve the problem for him
我有个主意他也许能解决这个问题
The adventure had been planned for quite a while.
那项冒险曾经作了长期的周详计划。
Fortunately for me, as I was wondering what to do next, there appeared on the horizon a man on horseback, riding in my direction.
不过，我是幸运的，正当我走投无路之时，从天边出现一个骑马的人向我骑来。