deltaic的音標是["delt??k]，基本翻譯是“德爾塔伊克”。速記技巧可以考慮使用字母和發音規律來簡化記憶，例如通過發音類似的字母組合來記憶單詞的發音。此外，可以使用一些記憶方法來加強記憶，例如聯想法、故事法或感官記憶法等。

Deltaic這個詞源自希臘語，意為“三角洲的”。它的變化形式包括Deltaic（Delta-的，形容詞），Deltaice（Deltaic的名詞形式）。相關單詞包括：

1. Delta（三角洲）：是一個地理名詞，通常指河流流入海洋或湖泊時沖積而成的扇形三角洲。

2. deltaic sediment（三角洲沉積物）：是指由河流流入海洋或湖泊時沉積在三角洲地區的沉積物。

3. deltaic plain（三角洲平原）：是指由三角洲沉積物形成的平原，通常位于河流入海口附近。

4. deltaic fan（三角洲扇）：是指由河流帶來的沉積物在三角洲地區形成的扇形地貌。

5. deltaic delta（三角洲三角洲）：是指由兩個或多個三角洲合并而成的復合三角洲。

6. deltaic erosion（三角洲侵蝕）：是指三角洲地區由于水流侵蝕而發生的侵蝕現象。

7. deltaic flood（三角洲洪水）：是指由于河流泛濫而引起的三角洲地區的洪水災害。

8. deltaic delta formation（三角洲三角洲形成）：是指兩個或多個三角洲相互合并，形成新的復合三角洲的過程。

9. delta-delta migration（三角洲-三角洲遷移）：是指兩個或多個三角洲相互靠近或遠離的過程。

10. deltaic environment（三角洲環境）：是指由三角洲沉積物形成的特殊環境，通常具有豐富的生物多樣性。

常用短語：

1. deltaic deposits - 三角洲沉積物

2. deltaic plain - 三角洲平原

3. deltaic sediment - 三角洲沉積物

4. deltaic floodplain - 三角洲泛濫平原

5. deltaic delta - 三角洲三角洲

6. deltaic erosion - 三角洲侵蝕

7. deltaic sedimentation - 三角洲沉積

雙語例句：

1. The deltaic plain is rich in sediment and is prone to flooding.

2. The deltaic deposits are formed by the sediment carried by the river.

3. The deltaic floodplain is a highly productive agricultural area.

4. The deltaic delta is a complex system of channels and islands.

5. The deltaic erosion caused by human activities has led to flooding problems.

6. The sedimentation of the deltaic plain has caused changes in the river"s course.

7. The environmental impact of deltaic sedimentation on the surrounding areas is a serious concern.

英文小作文：

Deltaic Plains: A Unique Landscape

Deltaic plains are a unique type of landscape that are formed by the deposition of sediment in a delta shape. These plains are rich in sediment and are prone to flooding, making them an interesting and challenging environment for researchers and environmentalists to study.

The sediment that forms the deltaic plain is primarily derived from the erosion of mountains and hills, as well as from the action of rivers and streams. This sediment is deposited in a fan-like pattern, forming a complex network of channels, islands, and floodplains that are unique to this type of landscape.

The deltaic plain is also a highly productive agricultural area, with its rich soil and abundant water resources making it an ideal place for growing crops and raising livestock. However, the environmental impact of deltaic sedimentation on the surrounding areas is a serious concern, as it can lead to changes in the river"s course, flooding problems, and other environmental issues.

Overall, the deltaic plain is an interesting and complex landscape that requires careful management and conservation efforts to ensure its sustainability and environmental balance.