The fire, which had started at the base of the 93-metre spire at about 6: 40 pm on Monday, spread through the cathedral's roof, made up of hundreds of oak beams, some dating back to the 13th century.
The fire began in a lift shaft and spread to the roof.
大火从电梯通道里开始，然后蔓延到了屋顶。
《柯林斯英汉双解大词典》
3
As hundreds of tourists and Parisians stood and watched the flames leaping from the roof, there was shock and tears as the cathedral spire caught fire, burned, and then collapsed into itself.