速
sù
速 — sù
- fast; rapid; quick
他跑步的速度很快。 tā pǎobù de sùdù hěnkuài — He runs very fast.
- velocity (formal/literary use)
物体的速度影响其动能大小。 wùtǐ de sùdù yǐngxiǎng qí dòngnéng dàxiǎo — An object's velocity affects the magnitude of its kinetic energy.
sù
他跑步的速度很快。 tā pǎobù de sùdù hěnkuài — He runs very fast.
物体的速度影响其动能大小。 wùtǐ de sùdù yǐngxiǎng qí dòngnéng dàxiǎo — An object's velocity affects the magnitude of its kinetic energy.