The fire had been put off when the firefighters arrived.

消防队员到达时，火已经被扑灭了。

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When the firefighters arrived, the big fire had been put out.

当消防员赶到时，大火已经被扑灭。

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Booth said when firefighters arrived they found two of the homes completely engulfed in flames.

Booth还说，当消防员抵达的时候，他们发现两家房屋已经完全吞没在火光里。

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Through 2009, the agency was including the period from the moment fire dispatchers received the call to when firefighters arrived on scene.

WSJ: All Heat, No Light, in Fire Data

When local firefighters arrived at the scene, Spengler fired and killed again.

CNN: STORY HIGHLIGHTS

"When firefighters arrived at the location, there was lots of smoke coming from the roof of a three-story condominium building, " the department said.

CNN: Firefighter killed in Dallas blaze