加速或減速

加速 jiaˉ suˋ

(Accelerate, Accelerated, Accelerates, Accelerating, Sped, Speed up, Speeding, Speeds, To accelerate, To speed) To accelerate, Accelerate, Accelerates, Accelerating, Accelerated, To speed up, Speed up, Speeds up, Speeding up, Sped up

或 huoˋ

Or, Maybe, Perhaps, Might

減速 jianˇ suˋ

(Decrease, Slow down, To decrease, To slow down) To slow down, Slow down, Slows down, Slowing down, Slowed down, To decrease speed, Decrease speed, Decreases speed, Decreasing speed, Decreased speed