Around the left axial rotation and backward rotation before the ball, respectively?

Beijing Nele2010-02-10 11:01:32 +0000 #1

joshsophia2010-02-10 11:11:17 +0000 #2

topspin and backspin

d4061892972010-02-10 11:45:47 +0000 #3

my side is called backward rotation of the ball for the next spin; forward rotation of the ball for top spin, do not know there is not.