velocity英音：[vi'l?siti]美音：[v?'lɑs?]
以下结果由译典通提供词典解释
名词 n.
1.
迅速;快速[U]
The hare darted off with the velocity of a bird.
野兔像鸟一样快速掠去.
2.
速度;速率[C]
The velocity of light is about 186,000 miles per second.
光速大约是每秒十八万六千英里