“放音乐!”只听一声令下,空中响起了动听的流水般的乐曲,突然,一个球体凭空而出,自由自在地飘荡在空中。“加大声音分贝!”再一声令下,只见那个球体逐渐改变形状,最后变成了一个立锥体。“再加大声音分贝!”只见那个立锥体又慢慢地变成了五角星体……这是怎么回事呢?难道是世界级魔术师大卫在表演“无 “Let’s play music!” Just listening to an order, the air blew in a beautiful, flowing piece of music. Suddenly, a sphere emerged out of thin air and drifted freely in the air. “Increase the sound decibels!” Then again, I saw that the sphere gradually changed its shape and eventually became a standing cone. “Increase the sound decibel again!” I saw that the standing cone slowly turned into a pentagram... What is going on here? Is it that the world-class magician David is performing “Nothing?