Running sum
[计] 当前和, 现行和
🧩 词语组成解析
running
['rʌnɪŋ]
n. 跑步;运转;流出;
adj. 跑着的;流动的;连续的;操作中的，运转着的;
v. 跑;运转(run的ing形式);
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
Exploring outer space is a challenge to mankind.
探索外层空间是一项向人类发出的挑战。
Excuse me I couldn't help you.
对不起我不能帮助你。
Hay had been cut and cowsheds had been cleaned.
干草已切好，牛棚也打扫干净了。