Hint: Use 'j' and 'k' keys
to move up and down
to move up and down
His job has ups and downs
U.S. trampoline gymnast Michael Devine trains for the London Games at his home gym, the J and J Tumbling and Trampoline Team Center, while his coach Shaun Kempton looks on in Pecatonica, Illinois, on Monday. (Photo by Jeff Haynes/Reuters)
