Once one child in the school has the infection, it spreads like wildfire.一旦学校里有一个孩子受到感染，就会迅速传播开来。The news spread like wildfire from mouth to mouth.消息一传十，十传百，犹如野火蔓延。 The story spread like wildfire.这件事很快传开了。The new fad spread like wildfire.新的时尚元素迅速流行开来。