The speed of a train is 90 kilometers per hour. It passes through a 888-meter bridge. It takes 45 seconds from the front of the train to the bridge and the rear of the train to leave the bridge. How long is the train?
一列火车的速度是每小时90千米，通过一座888米的大桥，从火车头上桥到车尾离开桥，一共用了45秒，那么这列火车长多少米．
<gadget id="calculator">25 * 45</gadget>
<output>1_125</output>

<gadget id="calculator">1_125 - 888</gadget>
<output>237</output>

<result>237</result>