Stad
abbr. 学生小组成绩分工法（Student Teams and Achievement Divisions）
🗣️ 情景例句
It was so stupid of me. I really do apologize.
非常抱歉， 我当时真糊涂。
Can I be sure of a profit if I invest?
我要是投资，肯定能获利吗？
That will be alright with us.
那就可以。