coarsest 的音標是["k??rs?st]，基本翻譯是“最粗糙的；最粗俗的”。

速記技巧：可以嘗試使用拼音速記，即“粗糙的死”，表示這個單詞的意思是“最粗糙的”。

coarsest 的英文詞源為coarse，意為粗糙的，粗劣的。其變化形式為coarsely，意為粗糙地，粗野地。

相關單詞：

coarse grain：粗糧

coarse sand：粗砂

coarse cloth：粗布

coarse language：粗俗的語言

coarse wool：粗毛線

coarse sandstone：粗砂巖

coarse grained：粗粒的

coarse sandpaper：粗砂紙

coarseness：粗野

coarsely：粗糙地

以上單詞都與粗糙、粗劣有關，體現了coarsest的詞義。其中粗糧、粗砂等詞語更是直接描述了物體的粗糙程度。同時，coarsely的使用也體現了該詞在句子中的用法。

coarsest短語：

1. coarsest grain

2. coarsest texture

3. coarsest level

4. coarsest grain size

5. coarsest scale

6. coarsest method

7. coarsest approach

例句：

1. The coarsest grain size of the sandstone is suitable for landscaping.

砂巖的粗粒度最適合用于景觀設計。

2. The coarsest texture of the paint is easy to scratch and damage.

油漆的粗紋理容易刮傷和損壞。

3. The coarsest level of the project has been completed, and now we are working on the next level.

項目的最底層已經完成，我們現在正在進行下一層的工作。

4. The company has adopted the coarsest grain size in its new product development strategy.

該公司在新產品開發戰略中采用了粗粒度方法。

5. The coarsest scale of measurement is the most general and inclusive.

最粗的尺度是最一般和包容性最大的。

6. We need to adopt a more coarsest approach to solve this problem.

我們需要采取更粗略的方法來解決這個問題。

7. The artist used a very fine brush to create a delicate painting, but he also used a coarsest brush to create texture and depth.

藝術家使用非常細的畫筆創作出精美的畫作，但他也使用粗糙的畫筆來創造紋理和深度。

英文小作文：

Coarsest Grain Size in Construction Materials: An Introduction to Different Materials and Their Applications

In construction materials, coarsest grain size plays a crucial role in determining the properties and applications of various materials. From sandstone to cement, there are various types of construction materials available, each with its unique characteristics and properties. Understanding the differences between these materials and their applications is essential for selecting the most suitable material for a specific project or task.

Coarsest grain size refers to the largest particles in a material, which determines its texture, strength, abrasiveness, and other properties. In sandstone, for example, the coarsest grain size determines whether it is suitable for landscaping or construction projects. On the other hand, cement requires a finer grain size for proper mixing and setting, while some materials may require a medium grain size for optimal performance in certain applications.

When selecting a material for a specific project, it is essential to consider the intended use, budget, environmental conditions, and other factors that affect the choice of material. By understanding the differences between different materials and their coarsest grain sizes, designers and contractors can make informed decisions and achieve optimal results. This article aims to introduce different construction materials and their coarsest grain sizes, providing an overview of their properties and applications.