coalsack

coalsack的音标为[ˈkəʊlæsæk] ，基本翻译为“煤烟星云”，速记技巧为：该词发音像“ coal 瞎说”。

Coalsack英文词源可以追溯到古英语中的coal，意为煤或炭。sack在这里指的是形状，引申为形状像煤烟或烟圈的星云状天体。

变化形式：复数形式为coalsacks，表示煤烟或烟圈的星云状天体。

相关单词：

Nebula：星云，指的是天体物理学中一类天体，形状和大小与星团、星系相似。

Cloud：云，与coalsack的形状相似，表示形状像烟圈或煤烟的星云状天体。

Nebulosity：名词，表示星云状的特性或性质。

Coalescence：名词和动词，表示合并或聚集成团，可以指星云状天体的聚集过程。

Coalescing：动词，表示聚集或聚合成团。

Coalesced：形容词和过去分词，表示已经聚合成团的状态。

Coalescingly：副词，表示聚集成团的方式或倾向。

Coalescence-like：形容词，表示类似于星云合并的状态或过程。

Coalsackian：形容词，表示与coalsack相关的或具有相似特性的。

常用短语：

1. coal black

2. coal sack

3. coal-black hair

4. coal-black eyes

5. coal-black smoke

6. coal-black sky

7. coal-black mood

例句：

1. The coal-black hair of the girl shone in the sunlight.

2. The coal-black eyes of the young man were full of passion.

3. The coal-black smoke from the chimney mingled with the grey clouds in the sky.

4. The coal-black mood of the teacher made the classroom quiet and solemn.

5. The coal sack was a symbol of wealth and power in ancient China.

6. The coal sack is a beautiful and mysterious object that attracts many visitors.

7. I am feeling a bit like a coal sack today, feeling lost and confused.

英文小作文：

Coal Sack: Symbol of Mystery and Power

The coal sack, a mysterious object with a rich history and cultural connotation, has always attracted many visitors with its beauty and allure. It is said that the coal sack was once a symbol of wealth and power in ancient China, worn by noblemen and emperors to show their status and dignity. Today, however, the coal sack has become a symbol of art and culture, attracting people from all walks of life to come and admire it.

The coal sack is a beautiful piece of cloth with a dark color, resembling coal in appearance. It is often used to create artworks and decorations, which are both unique and attractive. When people see a coal sack, they are often filled with a sense of mystery and wonder, wanting to know more about its history and cultural background.

The coal sack is not only a symbol of art and culture, but also a reminder of our history and heritage. It reminds us that we should cherish our cultural traditions and values, while also embracing the changes that come with time and development. In this way, we can create a better future for ourselves and our descendants, while also preserving our cultural heritage for future generations.