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
you wouldn't need as much money.
不需要花多少钱。
She has a unique talent for painting.
她有独特的绘画才能。
Next Annie took me by the hand and taught me how to jump.
接着，她又拉着我的手，教我如何跳。