acceleration
🇺🇸
/əkˌseləˈreɪʃn/
🇬🇧
/əkˌseləˈreɪʃn/
how fast something speeds up
The acceleration of the car was very quick.
这辆车的加速非常快。
how quickly a vehicle goes faster
This car has great acceleration.
这辆车的加速性能很好。
how fast something changes speed
Gravity causes acceleration when things fall.
重力导致物体下落时产生加速。