After sawing a 2-meter-long cuboid into two pieces from the middle, the surface area increases by 1 square meter. What is the original volume of this piece of wood in cubic meters?
把一根长2米的长方体木料从中间锯成两段后，表面积增加了1平方米，原来这根木料的体积是多少立方米
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * 2</gadget>
<output>1</output>

<result>1</result>