Corequisite
n. (規定須與其他課程同時修習的)并修課程
??? 情景例句
We have four people in the family, my parents, my elder brother and I.
我家有 4 口人，我的父母，我的哥哥和我。
I must know your opinion.Do you agree with me?
我必須知道你的意見.你同意我嗎？
Sometimes we aren't able to get into every building because there are too many steps.
有時我們并不能進每棟樓房，是因為樓梯太多了。