A plume of flames shot from the top of the structure as the fire quickly spread.

由于火势的迅速漫延，底部冒出一股熊熊大火蹿到酒店的顶上。

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A spokesman for the Beijing fire Brigade says flames spread quickly throughout the building-which was still under construction-because sprinkler systems and fireproofing were not yet in place.

北京消防队的发言人表示，大火延烧整栋大楼的速度很快，因为这栋大楼还在盖，里头的洒水系统和防火设施都还没完成。

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When the pyrotechnics were set off, the ceiling caught fire, state officials said, and the flames spread quickly.

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