Polymethine
聚甲炔; 聚甲炔
🗣️ 情景例句
What was your GPA last semester?
你上个学期的平均成绩是多少？
I'm being kept very busy with my required reading for Sosh this quarter.
本学期有许多必须为上社会学而读的东西，我太忙了。
Can't they be mended?
不能修补了吗？