black mineral found below the ground, used for burning to supply heat and to make coal gas
a piece of coal
"Without a drenching rain, the forest fire will char everything"
"The big ship coaled"
A..sloop which was coaling for a cruise in the Persian Gulf.
出自： E. Waugh
The teacher called the student over the coals for being cheated in the examination.
Margaret was called over the coals for losing of the important documents.
You will be hauled over the coals for going out and leaving the door unlocked.