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
I've heard a great deal about you.
久仰大名。
I don't care what you say.
我不在乎别人怎么说。
Yes. He wanted you to ring him.
留了。他要你给他打电话。