One canal is 68.6 meters long, which is 9.4 meters longer than the other canal. How long are the two canals in total?
一条水渠长68.6米，比另一条水渠长9.4米，两条水渠一共长多少米？
<gadget id="calculator">68.6 - 9.4</gadget>
<output>59.2</output>

<gadget id="calculator">59.2 + 68.6</gadget>
<output>127.8</output>

<result>127.8</result>