轮换发球
serve───n.发球,轮到发球;n.(Serve)人名;(法)塞尔夫;vi.服役,服务;适合,足够;发球;招待,侍候;vt.招待,供应;为…服务;对…有用;可作…用
rotational molding───旋转模塑;旋转成型;旋转铸塑
rotational symmetry───[晶体]旋转对称;轴对称;轴向对称,旋转对称; 轴对称
backhand serve───反手发球
serve well───球发得好;服务好
per serve───每次发球
in serve───发球
serve tea───奉茶;上茶
Players have to be in their correct rotational positions until the serve is executed.───在发球完成之前,运动员必须各就各位。
- sensei pro">speed───旋转速度,角速度;圆周速度;转动速度,圆周速度,角速度
rotational molding───旋转模塑;旋转成型;旋转铸塑
rotational symmetry───[晶体]旋转对称;轴对称;轴向对称,旋转对称; 轴对称
backhand serve───反手发球
serve well───球发得好;服务好
per serve───每次发球
in serve───发球
serve tea───奉茶;上茶
Players have to be in their correct rotational positions until the serve is executed.───在发球完成之前,运动员必须各就各位。