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 the best we can do under the circumstances.
情况就是这样， 我们已经尽力而为了。
A man has his hour, and a dog has his day.
人有称心时，狗有得意日。
I'm here! said Jim. And so is Polly!
“我在这儿！”吉姆说，“波利也在这儿！”