大多数的上升或下降运动并非全然垂直.Most emergence or submergence does not remain strictly vertical.热忱就像一螺旋, 它会向内转或向外转, 也会上升或下降.Enthusiasm is a spiral, turning inward or outward, rising or falling.这些复杂的投资是赌股票指数的上升或下降.These complex investm...