If the base and height of the parallelogram are reduced by 2 times, then the area of the parallelogram is reduced by how many times than the original
平行四边形的底和高都缩小2倍，那么平行四边形的面积就比原来缩小多少倍
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<result>4</result>