Backspin Billiards旋轉臺球;轉桌球;扭轉臺球
backspin underspin下旋球
backhand backspin service發反手下旋球
Backspin Blow回馬
backspin chop削下旋球
backspin service發下旋球
left-side backspin左側下旋
right-side backspin右側下旋
backspin rolls傳動托輥
1. spin (usually of a moving ball) that retards or reverses the forward motion