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
and I guess he looks a lot like me.
我看也蛮像我。
No answer.
没有人接电话。
The more you exercise, the fitter you will be.
越运动，越健美。