Vector sum
[计] 向量和
🧩 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
It's crazy here most of the time.
这儿经常吵吵闹闹。
Labour is often the father of pleasure.
勤劳常为快乐之源。
She's been quite different since coming back from America.
从美国回来之后，她变化很大。