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
Your meal will soon be served, please enjoy a drink first.
你们的菜很快就上，请先喝杯饮料。
When poverty comes in at the door, love flies out at the window.
贫穷进门来，爱情飞窗外。
It's only three hundred pounds. But, of course, it's not as good as the expensive one.
它只要300英镑。但是，它当然没有价钱高那种好。