What to do if I have a backspin ?

如果我有一个下旋球，怎么办？

Spins : backspin , topspin , heavy topspin .

旋转：上旋、下旋，不转球。

Monday backspin : 2010 chevron world challenge .

星期一缩：2010年雪佛龙世界挑战赛。

He did a backspin serve , denton didn 't know how to do it .

他发了个下旋球，搞得丹顿不知所措。

Basic shots include the backhand and forehand chops , the backhand and forehand drives , the backspin chop , the block shot , the drop shot , the smash , the cross shot and the half volley .

基本打法包括：反手和正手削球，反手和正手抽球，削下旋球，推挡，吊球，扣杀，斜线球和快拨。