例句
The ball gained velocity as it rolled downhill.
球向坡下滾動時速度越來越快。
Engineers measure the velocity of flowing water to determine whether a site is suitable for generating electricity.
工程師測量水流速度，以判斷某處是否適合發電。
常用搭配
- high velocity｜高速
- constant velocity｜恆定速度
- terminal velocity｜終端速度
用法提示
物理中velocity含方向，speed只表示快慢。