If the radius of the base of a cone doubles and the height shrinks to 1/3, how many times does its volume expand?
一个圆锥的底面半径扩大到原来的2倍，高缩小到原来的(1/3)，它的体积扩大到它的多少倍？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 * 2 * (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<result>4/3 = around 1.333333</result>