一座大型热带温室项目，矗立在中国北方某地，似已停摆多年。一阵风吹来，在温室各处，现出了风的行迹。风吹过，一切复归原态，但也有什么东西随风而逝。 A vast tropical greenhouse project stands somewhere in northern China, seemingly abandoned for years. A gust of wind blows in, leaving traces of its presence throughout the greenhouse. Everything returns to its original state after the wind, yet something vanishes with the breeze.
