coalfield的音標是["k??ELF?d]，基本翻譯是煤田。速記技巧可以是將其拆分為音節記憶，以提高記憶效率。

coalfield這個詞的詞源可以追溯到拉丁語中的“coalum”或“coalescere”，意為“凝聚”或“聚集”。它最初被引入英語中是在17世紀，用來描述煤炭開采的地區。

coalfield的變化形式主要有復數形式coalfields，以及過去式和過去分詞形式coaled或coaled。

相關單詞：

coalmine：采煤礦井，指的是開采煤炭的場所。

coalminer：采煤工人，指的是在煤礦工作的人。

coalbed methane：煤層氣，指的是儲存在煤層中的天然氣。

coalbedanja：一種煤層氣開采技術。

coalbedding：煤層沉積，指的是煤層的分布和結構。

coal-fired：燃煤的，指的是使用煤炭作為燃料的。

coal-fired power plant：燃煤發電廠，指的是使用煤炭燃燒產生電力的場所。

coal-to-liquor：煤炭液化技術，指的是將煤炭轉化為液態燃料的技術。

coal-fired boiler：燃煤鍋爐，指的是使用煤炭燃燒產生熱能的設備。

以上這些單詞都與coalfield有著密切的聯系，反映了煤炭在工業和能源領域的重要地位。

常用短語：

1. coal mining area

2. coal-bearing region

3. coal-fired power plant

4. coal mine accident

5. coal-to-liquids technology

6. coal bed methane

7. coal transportation

雙語句子：

1. 英國的煤炭產區是歷史悠久的煤炭生產地。（Coalfield in the UK is a historically important coal-producing region.）

2. 煤炭在工業生產中扮演著重要的角色，但同時也帶來了嚴重的環境問題。（Coal plays an important role in industrial production, but it also brings serious environmental problems.）

3. 煤炭開采過程中經常會發生礦難，給工人和家屬帶來巨大的痛苦。（Mining accidents are common in coal mining, causing great pain to workers and their families.）

4. 煤炭是一種清潔的化石燃料，可以用來發電和供暖。（Coal is a clean fossil fuel that can be used for power generation and heating purposes.）

5. 煤炭的開采技術正在不斷改進，以減少對環境的影響。（The mining techniques for coal are constantly being improved to reduce the impact on the environment.）

6. 煤炭運輸是煤炭產業鏈中不可或缺的一環。（Coal transportation is an essential part of the coal industry chain.）

7. 煤炭產業的發展對當地經濟和社會發展具有重要意義。（The development of the coal industry is of great significance to the local economy and social development.）

英文小作文：

Coalfield - The Heart of Energy

Coalfield is a term used to describe a region where coal is abundant and is used for various purposes such as power generation, transportation, and industrial processes. In the UK, coalfield is a significant part of the country"s energy mix, providing a reliable source of energy that has been crucial for the country"s economic growth and development. However, the mining of coal has also brought about environmental issues such as air pollution and land degradation, which has led to concerns about sustainability and environmental protection.

Despite these challenges, the coalfield region remains an important part of the UK"s economy and contributes significantly to the country"s energy security. The development of new technologies and sustainable practices in coal mining has led to a reduction in environmental impacts and a greater emphasis on renewable energy sources. At the same time, the transportation of coal through pipelines and railways has also become an essential part of the coalfield"s economic activities, providing a reliable and cost-effective means of transporting coal to power plants and other industrial facilities.

Overall, the coalfield region is a crucial part of the UK"s energy supply chain and plays a significant role in the country"s economic growth and development. However, it also requires careful management and sustainable practices to ensure that the environment is protected and that future generations will have a clean and safe environment to live in.