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
Well, do you have the phone number there?
那么， 有那儿的电话号码吗？
It seems he has a lot of bright ideas.
看起来他好像有很多聪明意见。
If you're free, how about lunch?
有空的话一起吃顿中饭如何？