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1.The train's grid rail is designed to prevent the wheels from touching the tracks.
火车的网格轨道设计成防止车轮与轨道接触。
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2.The engineer used a special tool to adjust the grid rail on the bridge.
工程师使用特殊工具调整桥梁上的网格轨道。
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3.The new design of the grid rail has made it easier for people to move around the city.
新设计的网格轨道让市民出行更方便。