coal

石炭

地中から掘り出し、燃やして熱や電気を作る黒色や褐色の岩石。

やさしい英語で： A black or brown rock dug from the ground and burned to produce heat or electricity.

• They burn coal to make electricity.
• His father worked in a coal mine.
• Large coal deposits lie beneath these hills.

よく使う表現： coal mine, coal mining, burn coal

石炭

燃料として売られる、黒色や褐色の石炭の種類や品質区分。

やさしい英語で： A type or grade of black or brown fuel sold for burning.

• This coal burns with little smoke.
• The supplier sells several grades of coal.
• We bought cheaper coal for the stove.

よく使う表現： smokeless coal, domestic coal, coal for heating

石炭の塊

燃料にする黒色や褐色の石炭の一つの塊。

やさしい英語で： A single piece of black or brown rock used as fuel.

• Put another coal on the fire.
• The coals glowed in the dark.
• She moved the hot coals with a shovel.

よく使う表現： hot coal, glowing coal, coal on something

石炭を補給する

船やエンジンに、燃料として使う石炭を供給する。

やさしい英語で： To provide a ship or engine with black rock fuel for burning.

• The crew stopped to coal the ship.
• Workers coaled the engine before dawn.
• The steamer needed coaling at the next port.

よく使う表現： coal a steamer, coal a ship