The outer diameter of a tire of a car is 0.8 meters, how many times does it take the wheels to turn when passing through a bridge with a length of 628 meters?
一辆汽车的轮胎外直径是0.8米，通过长628米的桥，车轮要转几周？
<gadget id="calculator">3.14 * 0.8</gadget>
<output>2.512</output>

<gadget id="calculator">628 / 2.512</gadget>
<output>250</output>

<result>250</result>