A rectangular field is 120 meters wide and twice as long as it is wide. What is the perimeter of the field in meters?
一块长方形场地，宽120米，长是宽的2倍，场地的周长是多少米？
<gadget id="calculator">120 * 2</gadget>
<output>240</output>

<gadget id="calculator">240 + 120</gadget>
<output>360</output>

<gadget id="calculator">360 * 2</gadget>
<output>720</output>

<result>720</result>