Arithmetical series
[机] 等差级数
🧩 词语组成解析
a. 算术的, 算术上的\\n[机] 算术的
🗣️ 情景例句
How were your scores in university?
你大学时的成绩如何？
I only had five dollars.
我只剩五美元。
There are some clouds in the sky,but the sun is shining.
天空中飘着几朵云，但阳光灿烂。