Partial sum
[计] 部分和数
🧩 词语组成解析
sum
[sʌm]
n. 总数;算术;金额;概略，要点;
vt.& vi. 总计;总结，概括;归纳;
🗣️ 情景例句
Mose people would like to work in the west, mainly because wages are comparatively high.
许多人喜欢在西方工作，主要是因为那边工资相对高些。
Let's get together sometime.
有时间我们聚一下吧。
No, sir, I always walk this way.
不，先生，我一直是这样走路的呀！