教你急长下旋球下集！学会挤的感觉！太好用了！一定要练！Teach you how to hit a long backspin ball! Learn how to squeeze!

[@sandysmith1927]

Thanks a lot!

[@Человекмира-у8с]

How make topspin against this ball

[@damiancasanova6549]

Its hard for me to have this feeling