不及物动词

1. 煤
Coal is a hard black substance that is extracted from the ground and burned as fuel.

2. (燃烧着的)煤块
Coals are burning pieces of coal.

3. 申斥;严厉责备
If a person in authority hauls or drags someone over the coals, they speak to them severely about something foolish or wrong that they have done.

4. 多此一举;徒劳无功
If someone is taking coals to Newcastle, they are trying to give or sell someone something that they already have a lot of.

1. a hot fragment of wood or coal that is left from a fire and is glowing or smoldering

Synonym: ember

2. fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period