Activity vector
[计] 活动向量
🧩 词语组成解析
🗣️ 情景例句
That's what I mean.
我就是指的这个。
Do no through fear of poverty surrender liberty.
不要因为怕贫苦而放弃自由。
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。