top spin ball的用法和樣例：
例句
- A tennis ball spins more on clay courts than on grass courts.
網(wǎng)球在土場(chǎng)上比在草場(chǎng)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(guò)注視自愿受試者坐在轉椅上旋轉時(shí)的眼睛運動(dòng)，發(fā)現這前庭視覺(jué)反應在老年受試者要比較慢些。
