火灾原因正在调查中。
火灾原因是一条高压生产线的破裂。
The fire was due to the rupture of a high pressure product line.
具体火灾原因有待进一步调查。 。
目前火灾原因尚在调查之中。
大火半小时内被扑灭，火灾原因正在调查中。
The fire was put out within half an hour and the cause of the fire was under investigation.
火灾原因尚不清楚。
火灾原因不明，也不清楚伤者当中有多少是儿童。
The cause of the fire was unknown, and it was not clear how many of the injured were children.
现警方初步估计此次 三 水港口火灾原因是人为纵火。
The police now suspect the initial cause of the fire in Sanshui to be arson.
火灾的原因尚不清楚。
许多专家认为森林火灾有一些原因。
Many experts believe there are some reasons for forest fires.
许多专家认为火灾的突然增加有几个原因。
Many experts believe there are several reasons for this sudden increase in fires.
他们知道引起这场火灾的原因吗？
火灾的原因正在调查中。
事实上，这次火灾有许多原因。
消防部门未立即就火灾的可能原因置评。
The fire department did not immediately comment on the suspected cause of the blaze.
首先，放鞭炮是火灾事故潜在的原因，特别是在大城市。
First, burning firecrackers is a potential cause of fire accidents, especially in the big city.
他们正在努力查寻那次可怕的火灾的原因。
They are trying to find out the reason (or cause) of the terrible fire.
人们猜测引起火灾的原因可能有人把烟头丢在山上。
People guessed the reason caused the fire maybe someone left a butt in the mountain.
你知道火灾的原因吗？
火灾的原因是疏忽。
火灾的原因是粗心。
造成火灾的原因通常是不谨慎。
大量隧道火灾案例表明，烟气和毒气是人员窒息中毒伤亡的主要原因。
Many tunnel fire incidents show most people died from smoke choking and toxic gases.
大量隧道火灾案例表明，烟气和毒气是人员窒息中毒伤亡的主要原因。
Many tunnel fire incidents show most people died from smoke choking and toxic gases.
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