A road has been built for 98 meters, which is 20 meters less than half of the total length. How long is this road in meters?
修一条路已经修了98米，比全长的一半少20米，这条路全长多少米？
<gadget id="calculator">98 + 20</gadget>
<output>118</output>

<gadget id="calculator">118 * 2</gadget>
<output>236</output>

<result>236</result>