velocity /vəˈlɑːsəti/ noun plural velocities
plural velocities
Learner's definition of VELOCITY
: quickness of motion : speed速度 [count]
[noncount]
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measuring the velocity of sound测量声速
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the velocity of a bullet子弹的速度
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His pitches have great velocity. [=his pitches are very fast]他投球速度极快。