The magician rapped the hat three times with his wand, said “hocus-pocus” and a rabbit appeared.魔术师用魔杖轻敲了三下帽子，口中念念有词，一只兔子就变出来了。My signal will be three knocks, a pause, then two more.我的暗号是敲三下后停一停，然后再敲两下。Three more pumps and the tire should be full enough.打气筒再打三下，轮胎的气应该就足了。