Four quadrant operation
[计] 四象限操作
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
quadrant
['kwɔdrənt]
n. 四分之一圆;扇形体;象限仪;四分仪;
🗣️ 情景例句
Oh!
噢！
I haven't seen you for age. You haven't been sick, have you?
好久不见。你不是病了吧？
The whole world knows that.
全世界都知道。