coaler的音標是[k???le??(r)]，基本翻譯是“運煤者；煤車司機”。記憶技巧：coal“煤”+ er“人”→運煤的人→運煤者。

Coal的英文詞源可以追溯到拉丁語“coalex”或“coalitum”，意為“研磨機”。它的變化形式包括復數形式“coalles”和過去式“coalavit”以及“coaluit”。

相關單詞：

1. Coal Mining（煤炭開采）：這個詞是由coal（煤炭）和mining（開采）組成的，表示對煤炭資源的開采工作。

2. Coal Bed Methane（煤層甲烷）：這是一種從煤炭中提取的天然氣，也被稱為coal gas。

3. Coal Tar（煤焦油）：是從煤炭焦化過程中提取的有用物質，可以用于制造各種化學品。

4. Coal-fired（燃煤的）：這是一個形容詞，表示使用煤炭作為燃料的。

5. Coal Bed Depletion（煤層枯竭）：描述煤炭資源的耗盡。

6. Coal Industry（煤炭工業）：這是一個廣泛使用的術語，描述煤炭的生產、運輸和銷售等環節。

7. Coal Bed Shale Gas（煤層氣）：這是一種與煤層甲烷相關的天然氣，與煤層枯竭有關。

8. Coal Bed Methane Recovery（煤層甲烷回收）：一種從煤炭中提取天然氣的技術。

9. Coal Tar Pine Tar（煤焦油松香）：這是一種由煤焦油制成的產品，用于制造各種產品。

10. Coal Bed Methane Production（煤層甲烷生產）：描述從煤炭中提取天然氣的過程。

以上這些單詞都與煤炭有關，反映了煤炭在工業和能源領域的重要地位。

常用短語：

1. coal up

2. coal in

3. coal down

4. coal to

5. coal off

6. coal up with

7. coal in with

雙語例句：

1. Please coal up some coal for the stove.

2. We need to coal in some more coal before the fire goes out.

3. After coaling down, we all went to bed.

4. Can you coal to me with some information?

5. The train was coal off at the next stop.

6. She coaled with her friends after work.

7. We need to coal up with a new strategy to win the game.

英文小作文：

Coal is an essential fuel for our daily life. It provides us with heat and energy, making our lives more comfortable and convenient. However, coal mining is a dangerous and dirty job, and it also causes environmental problems such as air pollution and soil erosion. Therefore, we should try to use alternative energy sources such as solar energy and wind power to reduce our dependence on coal. At the same time, we should also promote environmental protection and sustainable development to ensure a better future for ourselves and our planet.