“旋球”的英语？

“旋球”的拼音为：xuán qiú...

击球手踮起脚将这记上旋球击到场地中。The batsman rose on his toes and played the rising ball down into the ground.假定你用力击球或以上旋球打击.Assuming your driving the ball or hitting with topspin.这个旋球转盘的简化模型演示了这个力.This simplified model of a carousel d...