发生火灾

• breaking out of fire

例句

1. 在发生火灾时，打破玻璃并按红色按钮。
   In case of fire, break the glass and push the red button.
2. 一旦真的发生火灾，许多人就不知所措，不知道该干什么好了。
   Many people are at a loss as to what to do in case of a real fire.
3. 已经事先警告过我们有发生火灾的危险。
   We had been forewarned of the risk of fire/that fire could break out.