eluviation的音標是[??lu?vi??e??n]，基本翻譯是“沉積，沉積作用；向上浸蝕；向上浸蝕作用；向上浸蝕物”。速記技巧是：el-loo-vee-eye-an。

Eluviation這個詞的詞源可以追溯到拉丁語，意為“流出的物質”。它是由“elutri”和“facere”兩個詞組合而成的，表示“篩選”或“分選”。

Eluviation的變化形式主要有詞根的變形和詞性的變化。在詞根方面，“-luvis-”表示“水”，“-v-”表示“流出”，所以eluvium（沉積物）這個詞根可以表示“從水中流出的物質”。在詞性方面，eluviation可以作為名詞使用，表示沉積物或沉積過程，也可以作為動詞使用，表示沉積或積累。

相關單詞有：

1. Deposit (n.) - 意為“沉積物”，是eluviation的名詞形式，表示物質積累或沉淀的過程。

2. Eluvial (adj./n.) - 意為“沉積的”或“沉積物”，是eluviation的形容詞和名詞形式。

3. Sediment (n.) - 意為“沉積物”，與eluviation有相似的含義，表示物質積累或沉淀的過程。

4. Accumulation (n.) - 意為“積累”，與eluviation有相似的含義，表示物質的積累或聚集。

5. Depositional (adj.) - 意為“沉積的”或“沉積作用形成的”，是eluviation和deposit的形容詞形式，表示與沉積過程相關的。

6. Elution (n.) - 意為“溶解”，與eluviation相反，表示物質從固體中分離的過程。

7. Evaporite (n.) - 意為“蒸發沉積物”，與eluviation不同，它表示物質在蒸發作用下形成的沉積物。

8. Lixivium (n.) - 意為“濾出物”，與eluviation的含義相反，表示物質從液體中分離的過程。

9. Lixiviation (n.) - 是lixivium的過程或行為的抽象，意為“濾出過程”或“濾出作用”。

10. Sedimentation (n.) - 意為“沉淀”，是一個更通用的術語，用于描述各種類型的沉積過程，包括eluviation。

常用短語：

1. sedimentation 沉積

2. accumulation 積累

3. leaching 浸出

4. infiltration 滲透

5. percolation 滲透

6. dispersion 散布

7. dispersion of sediment 沉積物的散布

例句：

1. The sedimentation of silt in the river caused the water level to rise.

2. The rainwater accumulated on the rooftop and flowed into the gutter.

3. The leaching process is used to extract valuable minerals from ore.

4. Water seeps through the soil and affects the growth of plants.

5. After being filtered through the soil, water flows out as clean as it came in.

6. The particles of sand were dispersed evenly in the ocean.

7. The dispersion of sediment will affect the flow of the river and cause erosion.

英文小作文：

The importance of sedimentation and dispersion in our daily lives

Sedimentation and dispersion are two important processes that affect our daily lives. Sedimentation refers to the process of particles settling to the bottom of a container, while dispersion refers to the spreading of particles into different directions.

Sedimentation occurs naturally in rivers and lakes, causing particles such as silt and debris to settle to the bottom over time. This process can affect the water quality and flow of rivers and lakes, leading to erosion and changes in ecosystems. On the other hand, dispersion refers to the spread of particles into different directions, such as sand particles in the ocean or dust particles in the air. Dispersion can have a significant impact on our environment, affecting air quality, water resources, and even climate patterns.

In terms of human activities, sedimentation and dispersion also play a role in urban planning and infrastructure development. For example, when building a new dam or reservoir, engineers must consider how to prevent sediment from accumulating and clogging the system, which could lead to water quality issues and damage to infrastructure. On the other hand, proper dispersion of construction materials and debris is crucial for environmental protection and reducing waste.

Therefore, sedimentation and dispersion are two essential processes that we must consider when dealing with our environment and infrastructure development. Understanding these processes can help us make better decisions and ensure sustainable development for future generations.