It's a puzzle to the police what caused the big fire.

大火的起因对警察来说是个难解的问题。

youdao

Fire drills1 are a big part of being safe in school: They prepare you for what you need to do in case of a fire.

消防演习是保证校内安全很重要的一部分：它们使你在火灾发生时知道该如何应对。

youdao

It is unusual for me when I saw the big kitchen range what make a fire use woods, thick bamboo tube what make it fire, old ancestral hall, Buddha and the ancient well.

在舅舅家，那生柴火的大灶、吹火的竹筒、破旧的祠堂、神像以及提供日常用水的幽深的古井都令我倍感新奇。

youdao

His explosions tap into a primordial human attachment to fire and to what he sees as our genetic memories of the Big Bang.

ECONOMIST: Firework chaos theory from a latterday Prospero

What was once a sure-fire bet in emerging markets has now become somewhat of a dud, especially in the big ADRs of Brazilian listed companies on the NYSE.

FORBES: Brazil Economy Not What It Once Was