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
A cookie can't hurt, though.
但一片小甜饼不要紧。
Her husband felt ashamed of her behavior.
她丈夫为她的行为感到羞愧。
Sure. I would love to come. Thanks a lot.
当然。我愿意来。非常感谢。