burn to a cinder

例句：

1. 1. The fire burned the houseto a cinder.
   火把房子烧成了灰烬。
2. 2. The old tree was burnt to a cinder by the wind.
   老树被风吹得化为灰烬。
3. 3.The firefighters fought hard to savethe building from burning to a cinder.
   消防员们努力奋战，试图将大楼从燃烧成灰烬中拯救出来。