grand duke的音標是[?gr?nd dju?k]，基本翻譯是大公，速記技巧是：大公=grand+duke。

Grand Duke這個詞的英文詞源可以追溯到拉丁語grandis dux，意為“偉大的領導者”。它的變化形式包括其復數形式grand dukes，過去式grand-duke，過去分詞grand-duke和現在分詞grand-duck。

相關單詞：

Grandfather：意為“祖父”，因為grandfather這個詞中的“grand”和Grand Duke中的“grand”有相似的含義，都表示“偉大的”。

Grandson：意為“孫子”，因為這個詞中的“grand”也表示一種尊敬或偉大的含義。

Grandiose：意為“豪華的，壯觀的”，因為這個詞中的“grand”表示宏大的，給人留下深刻印象的。

Grandiloquence：意為“夸大其詞”，因為這個詞中的“grandiloquent”表示夸大其詞的。

Grandiosity：意為“自大，自負”，因為這個詞中的“grandiosity”表示一種自大的行為或態度。

以上這些單詞都與Grand Duke這個詞有某種聯系，它們都含有“偉大的”這個含義。同時，這些單詞也反映了英語詞匯中詞綴和詞根的豐富多樣性，以及它們在詞匯演變中的重要作用。

常用短語：

1. Grand Duke of Luxembourg

2. Grand Duke Michael of Russia

3. Grand Duke of Hesse

4. Grand Duke of Tuscany

5. Grand Duke of Edinburgh

6. Grand Duke of Saxe-Weimar

7. Grand Duke of Anhalt

雙語例句：

1. The Grand Duke of Luxembourg is the head of the royal family.

盧森堡大公是王室的首領。

2. The Grand Duke Michael of Russia was a great military leader.

俄羅斯大公米哈伊爾是一位偉大的軍事領袖。

3. The Grand Duke of Hesse is a highly respected member of the royal family.

黑森大公是王室中備受尊敬的一位成員。

4. The Grand Duke of Tuscany was known for his wise leadership.

托斯卡納大公以其明智的領導而聞名。

5. The Grand Duke of Edinburgh is a beloved figure in royal history.

愛丁堡大公是皇室歷史中備受愛戴的人物。

6. The Grand Duke of Saxe-Weimar is remembered for his courage and leadership.

薩克斯-魏瑪大公因其勇氣和領導力而被銘記。

7. The Grand Duke of Anhalt is known for his generosity and kindness.

安哈爾特大公因其慷慨和善良而聞名。

英文小作文：

Title: The Grand Duke and the Royal Family

The royal family is a unique institution that has existed throughout history, and one of the most respected members of this family is the Grand Duke. He is the head of the family and represents its values and traditions to the world. From military leaders to wise leaders, the Grand Duke has played a significant role in the history of royalty. However, it is not only his leadership qualities that make him special, but also his generosity, kindness, and loyalty to the family and his country. In this way, the Grand Duke is an inspiration to all those who aspire to be a part of such an esteemed institution.