deltaic 的音標是["delt?k]，基本翻譯是“德爾塔的”。速記技巧可以考慮使用字母代記，將字母delta（Δ）替換為單詞“德爾塔”，同時確保整個單詞的拼寫正確。此外，可以使用發音口型記憶法，通過觀察字母的發音口型來幫助記憶單詞的發音。

deltaic這個詞源自希臘語，意為“三角洲的”。它的變化形式包括delta(n.三角洲)，deltoid(adj.三角洲的，三角形的)，deltoid(n.三角肌)。

相關單詞包括：

deltaicsoil（n.三角洲土壤）: 通常由河流帶來的沉積物形成，在三角洲地區常見。

deltaicplain（n.三角洲平原）: 在三角洲地區，河流帶來的沉積物堆積形成的平坦地區。

deltaicdelta（n.三角洲三角洲）: 一種地形特征，通常由河流帶來的沉積物形成。

deltavolcano（n.三角洲火山）: 在三角洲地區可能形成的火山。

deltaclining（n.三角洲治療）: 一種針對三角洲地區特定環境的治療方法。

deltaculture（n.三角洲文化）: 三角洲地區的特定文化，通常與河流、海洋和土地有關。

deltacarbon（n.三角洲碳）: 一種與三角洲地區相關的碳儲存和排放問題。

deltacompact（adj.緊湊的三角洲）: 形容物體緊湊、密集或緊密結合的狀態。

deltacompactstructure（n.緊湊的三角洲結構）: 一種緊湊、密集或緊密結合的結構。

以上這些單詞都與三角洲地區有關，體現了該地區的地理、環境、文化和人類活動等多個方面。

常用短語：

1. deltaic soil

2. deltaic plain

3. deltaic sediment

4. deltaic fan

5. deltaic delta

6. deltaic floodplain

7. deltaic estuary

雙語例句：

1. The deltaic soil is rich in nutrients and suitable for agriculture.

2. The deltaic plain is a highly productive region for agriculture and fisheries.

3. The deltaic sediment is deposited in the river estuary and forms a new island.

4. The deltaic fan is formed by the sediment transported by rivers and streams.

5. The deltaic delta is a highly complex geomorphological region with many islands and peninsulas.

6. The floodplain of the river is flooded during the rainy season and forms a beautiful landscape.

7. The estuary of the river is a rich ecosystem with many marine and bird species.

英文小作文：

Deltaic landscapes are unique and fascinating places that are home to a diverse range of ecosystems and species. From rich soil and productive farmlands to beautiful landscapes and rich ecosystems, deltaic regions have much to offer. However, deltaic landscapes are also facing many challenges, including climate change, water scarcity, and human impact. It is important to conserve these unique environments and ensure their sustainability for future generations. Deltaic landscapes are a testament to the power of nature and the beauty of our planet, and we must do everything we can to protect them.