能量会随着你思维的方向而流动。
绕着光涡旋的黑暗中心，光束携带的能量流就像螺旋梯，沿着顺时针或者逆时针方向流动。
Around the dark core of an optical vortex, the energy flow carried by the light beam is like a spiral staircase, flowing in a clockwise or counterclockwise direction.
因为涡轮自由旋转，无论河水朝哪个方向流动，涡轮都能获得能量。
Because the turbines swing freely, they can draw energy no matter which way the tide is running.
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