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
That's what I thought.
我也正这样想。
An idle brain is the devil's workshop.
游手好闲是万恶之源。
In the centre of the hall, there were a number of tall structures which contained coloured lights.
展厅中央是装有彩色灯泡的许多高高的构件，