top spin ball的用法和樣例：
例句
- A tennis ball spins more on clay courts than on grass courts.
網球在土場上比在草場上旋轉更明顯。 - By following the eye movements of volunteers as they spin in his whirling chair, Paige has found that this vestibulo-ocular reflex is slower in older subjects.
佩奇通過注視自願受試者坐在轉椅上旋轉時的眼睛運動，發現這前庭視覺反應在老年受試者要比較慢些。
