In 2006, a certain city decided to build an 80-kilometer car-only road around the city within two years. By the end of last year, the ratio of the completed road to the total length of the special road was 3:5. How many kilometers will be built this year?
2006年，某市决定两年内修建一条80千米的环城汽车专用道，到去年年底，已修的和专用道全长的比是3：5，今年还要修多少千米？
<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">80 * (2/5)</gadget>
<output>32</output>

<result>32</result>