A rectangular vegetable field is 18.8 meters long and 9.6 meters longer than it is wide. What is the perimeter of this rectangular vegetable field in meters?
一块长方形的菜地，长18.8米，长比宽多9.6米，这块长方形菜地的周长是多少米？
<gadget id="calculator">18.8 - 9.6</gadget>
<output>9.2</output>

<gadget id="calculator">9.2 + 18.8</gadget>
<output>28</output>

<gadget id="calculator">28 * 2</gadget>
<output>56</output>

<result>56</result>