velocity

/vəˈlɒsəti/ noun
标准词条 CET-4
一句话记住

速度;速率

释义与例句

noun 速度;速率
the speed of something in a given direction; rapidity of motion
  1. The car reached a velocity of 200 km/h.
    这辆车达到了每小时200公里的速度。
  2. Light travels at a constant velocity.
    光以恒定的速度传播。
展开其余 1 条例句
  1. The rocket accelerated to escape velocity.
    火箭加速到逃逸速度。

词源与构词

记忆钩子 veloc(快,拉丁 velox)+ ity(名词)= 速度

词族与关联词

词族(同一词根派生出的不同词性或形式)
  • velocimeter 测速计
    device for measuring velocity
同义词
  • speed 速度
    speed is the common term; velocity includes direction in physics
    The car was travelling at high speed. 这辆车高速行驶。
反义词
  • slowness 缓慢
    slowness is the state of moving at low speed
    The slowness of the process frustrated everyone. 过程的缓慢让每个人都很沮丧。
常见搭配
  • high velocity 高速
    The bullet hit the target at high velocity. 子弹以高速击中目标。
  • low velocity 低速
    The low velocity of the train made the journey long. 火车的低速使旅程变长。
  • escape velocity 逃逸速度
    A spacecraft must reach escape velocity to leave Earth. 航天器必须达到逃逸速度才能离开地球。