Children from the families across the tracks always work hard.

出身贫寒的孩子往往工作得很努力.

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The train thundered across the tracks.

火车呼啸着经过铁轨.

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Hagrid and Harry are also filmed walking over the pedestrian bridge across the tracks.

海格和哈利在影片里也曾走过人行天桥跨过铁轨.

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