coal fall

• 煤崩落,煤的崩落

coal fall的用法和样例：

例句

1. A coal fell from the fire and burned the mat.
   一块煤炭从火中掉出来，烧坏了地席。
2. A hot coal fall out of the fire and burn the carpet.
   火炉里掉出一块炽热的煤把地毯烧了。