coal的音標(biāo)是[?k??l]。基本翻譯是“煤；煤炭”。速記技巧是注意不要和“flower”混淆。

coal的英文詞源：

coal的英文詞源可以追溯到拉丁語詞源“carbo”，意為“炭”。在英語中，這個(gè)詞被轉(zhuǎn)化為coal，表示煤炭或煤塊。

變化形式：復(fù)數(shù)形式是coal或coalitions；比較級是coarser或more coal；最高級是coolest或most coal。

相關(guān)單詞：

1. coal mine：礦業(yè)，礦井。這個(gè)詞源于英語中的coal，表示開采煤炭的地方或工作。

2. coal-fired：燃煤的。這個(gè)詞來源于coal，表示使用煤炭作為燃料的方法或設(shè)備。

3. coal-gas：煤氣，也稱為瓦斯。這個(gè)詞來源于coal，表示從煤炭中提取的燃?xì)狻?/p>

4. coalition：聯(lián)盟，聯(lián)合。這個(gè)詞來源于coal，表示由不同團(tuán)體或國家組成的聯(lián)盟或聯(lián)合體。

5. coalface：煤礦坑道的前壁。這個(gè)詞來源于coal mining，表示煤礦坑道前方的堅(jiān)硬巖石或材料。

6. coalface worker：煤礦工人。這個(gè)詞表示在煤礦中工作的工人，通常指從事挖掘煤炭工作的人。

7. coal seam：煤層，也稱為煤系地層。這個(gè)詞來源于coal，表示煤炭層或地層。

8. coal-black：煤黑色的。這個(gè)詞來源于coal，表示顏色深黑的特征。

9. coal-dust：煤塵。這個(gè)詞來源于coal，表示煤炭顆粒或粉塵。

10. coal-tar：煤焦油。這個(gè)詞來源于coal，表示從煤炭中提取的有機(jī)物質(zhì)，通常用于制造藥品和化妝品等產(chǎn)品。

常用短語：

1. coal mining

2. coal-fired power plant

3. coal bed methane

4. lignite

5. coal tar

6. coal mining equipment

7. coal-to-liquids

8. coal ash

例句：

1. Coal mining is a dangerous and dirty industry that requires strict safety measures.

2. The new coal-fired power plant will help to meet the increasing demand for electricity.

3. Lignite is a type of coal that is often used for generating power in developing countries.

4. The coal tar produced in the mining process is used in various industries such as paint manufacturing.

5. Coal mining equipment has made significant progress in recent years, with new technologies such as autonomous mining vehicles.

6. The coal-to-liquids process is a promising method for converting coal into a more versatile fuel.

7. The coal ash left over from coal mining can be used for various purposes such as cement production and road construction.

英文小作文：

Coal is an essential resource that has played a crucial role in the development of the modern world. It is used in the production of electricity, heat, and fuel, and is also a major component of many industrial processes. However, coal mining and its associated industries also have negative impacts on the environment and human health, and it is essential that we find alternative sources of energy and reduce our reliance on coal. Nevertheless, coal remains an important resource for the foreseeable future, and its use will continue to play a role in the global energy mix.