coal [verb]
coal作不可数名词，表示燃料。
Coal is burned to generate electricity.
煤被燃烧用来发电。
煤
coals — plural of coal
煤块；余烬；木炭；一种黑色或棕黑色岩石,由史前植物遗骸形成,主要成分为碳,用作燃料。；由石炭纪时期碳化植物物质组成的化石燃料
Black or brownish-black rock formed from fossilized plant matter, used as fuel.
一种黑色或棕黑色岩石,由史前植物遗骸形成,主要成分为碳,用作燃料。
A black or brownish black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.
由石炭纪时期碳化植物物质组成的化石燃料
fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
用于燃烧的一块煤(此用法在美式英语中较少见)。
A piece of coal used for burning (this use is less common in American English)
火中留下的发光或冒烟的木炭或煤块
a hot fragment of wood or coal that is left from a fire and is glowing or smoldering
一块炽热或烧焦的煤、木材或其他固体燃料。
A glowing or charred piece of coal, wood, or other solid fuel.
木炭。
Charcoal.
The old steam train runs on coal.
那辆老式蒸汽火车以煤为动力。
用法提示：此处'coal'为不可数名词，意为'煤炭'，指火车使用的燃料。
My grandfather worked in a coal mine for thirty years.
我祖父在煤矿工作了三十年。
用法提示：此处'coal'为不可数名词，作定语修饰'mine'，表示煤矿。
We need to reduce our reliance on coal for electricity.
我们需要减少对煤发电的依赖。
用法提示：此处'coal'为不可数名词，意为'煤炭'，指发电的能源。
coal作不可数名词，表示燃料。
Coal is burned to generate electricity.
煤被燃烧用来发电。
coal可作定语修饰名词。
The coal mine employs hundreds of workers.
那个煤矿雇佣了数百名工人。
coal作可数名词指一块煤，常用复数。
The fire was dying, so she added a few coals.
火要熄灭了，所以她加了几块煤。
木炭由木材烧制而成，煤是化石燃料，两者不可完全互换。
焦炭是煤经干馏后的产物，可作为燃料，但来源和性质不同。
grammar · medium
易错句子I found a coal on the ground.
正确表达I found a piece of coal on the ground.
煤是不可数名词，不能直接用不定冠词 'a' 修饰，应使用 'some' 或 'a piece of' 等量词。
grammar · medium
易错句子We used coal for the barbecue.
正确表达We used charcoal for the barbecue.
中文中'煤'和'木炭'有时混用，但英语中coal指煤炭，常用于发电；charcoal指木炭，用于烧烤。此处应使用charcoal。
煤是矿物质燃料，木炭是木头烧制的
焦炭是煤干馏产物，而煤是原矿
煤矿
He worked in a coal mine for 20 years.
他在煤矿工作了20年。
煤炭工业
The coal industry has declined in recent decades.
煤炭工业近几十年来衰退了。
采煤；煤矿开采
Coal mining is a dangerous job.
采煤是一项危险的工作。
煤火
They sat around the coal fire to keep warm.
他们围坐在煤火旁取暖。
烧煤
Many power plants still burn coal to generate electricity.
许多发电厂仍然烧煤发电。
coal + field
coal + mine
coal + miner
coal + fired
coal + tar
char + coal
多此一举；徒劳无功
Trying to teach a seasoned chef how to cook is like carrying coals to Newcastle.
试图教一位经验丰富的厨师如何做饭，就像往纽卡斯尔运煤一样，多此一举。
严厉责备；申斥
The boss raked him over the coals for missing the deadline.
老板因他错过截止日期而严厉责备了他。
严厉斥责；训斥
She was hauled over the coals for her careless mistake.
她因粗心错误而受到严厉训斥。
发长 /oʊ/ 音 (如 boat, coat)
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.