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
When does the next train leave for New York?
到纽约的下一趟火车什么时候开车？
They are hot tempered.
他们肝火太盛。
But they still put their stockings at the end of their beds.
但他们仍然把自己的长统袜挂在床脚边。