A cuboid log is 4 meters long and has a cross-sectional area of 0.25 square meters. What is the volume of this log?
一根长方体木料，长4米，横截面的面积是0.25平方米，这根木料的体积是多少？
<gadget id="calculator">4 * 0.25</gadget>
<output>1</output>

<result>1</result>