Sideways sum
[计] 数位迭加和
🧩 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
I don't know for sure.
我不太清楚。
He is something.
他是重要人物。
One day a week he would spend the whole day in silence.
每周有一天他是在沉默无语中度过的。