coal

/kəʊl/ (bre, ipa) · /kəʊl/ (ame, ipa) · /ˈkōl/ (ame, mw)

coal — 名詞

1. A dark, rock-like fuel that people dig from underground. It formed over millions

1.名詞C1
釋義

煤炭

一種地下開採的黑色化石燃料

A dark, rock-like fuel that people dig from underground. It formed over millions of years as ancient plants decomposed under heavy layers of earth. Setting it on fire gives off intense heat, which people use to warm buildings and generate electricity.

例句

The power plant burns over five hundred tonnes of coal each day to keep the city's lights on.

這座發電廠每天燃燒超過五百噸的煤炭,以維持城市的供電。

collocation: burn coal — energy generation

Aiko picked up a dusty lump of coal from the pile and tossed it into the iron stove.

Aiko 從煤堆裡撿起一塊滿是灰塵的煤炭,扔進了鐵製火爐裡。

countable: a lump of coal

同義詞
  • anthracite

    a very hard type of coal that burns with little smoke

  • coke

    coal that has been heated to remove gases, used in steelmaking

  • fossil fuel

    broader category that includes coal, oil, and natural gas

反義詞

用法筆記

Usually uncountable when referring to the substance in general ('a tonne of coal,' 'coal mining'). Countable when talking about individual pieces ('a coal flew out of the fireplace').

常見錯誤

We bought a bag of coal for the barbecue.
We bought a bag of charcoal for the barbecue.
💡Coal is a mined rock fuel used for heating and electricity; charcoal is made from burnt wood and used for cooking.
The black diamond is a type of coal.
The black diamond is a type of carbon, but it is not coal.
💡Coal and diamonds are both carbon-based but formed very differently.

coal — 動詞