Experts say measures taken to stop fires can end up causing more devastating ones by allowing the growth of small trees and underbrush, "ladder fuels" that ignite bigger trees.

专家说为防止火灾所采取的措施可以避免毁灭性灾难，因为如果允许小树和灌木肆意生长，形成的“阶梯燃料”会点燃更大的树。

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Experts say measures taken to stop fires can end up causing more devastating ones by allowing the growth of small trees and underbrush, "ladder fuels" that ignite bigger trees.

专家说为防止火灾所采取的措施可以避免毁灭性灾难，因为如果允许小树和灌木肆意生长，形成的“阶梯燃料”会点燃更大的树。

youdao