first-born的音標是["f?rst-"b??n]。基本翻譯是“長子，頭胎”。速記技巧可以是：first的首字母和born合并成一個詞，幫助記憶。

first-born這個詞來自拉丁語，意為“first-born”，意為“長子”或“頭胎”。它的變化形式包括復數形式first-borns，過去式形式first-borned，過去分詞形式first-born。

相關單詞：

eldest：意為“最年長的”，來源于古英語，與first-born同源。

head：意為“頭”，與first-born相關，可以表示“頭胎”或“頭目”。

primogenitor：意為“長子”，來源于拉丁語，表示最早出生的孩子。

senior：意為“年長的；地位較高的”，與first-born相關，表示在年齡或地位上更優越的人。

founder：意為“創始人”，與first-born相關，表示最先出生的孩子。

founderling：意為“初生的嬰兒”，與first-born相關，表示剛出生的孩子。

firstling：意為“頭胎”，與first-born相關，表示第一個出生的孩子。

birthright：意為“長子繼承權”，與first-born相關，表示長子的特權。

prole：意為“嫡系”，與first-born相關，表示長子繼承的財產或地位。

以上單詞都與first-born有關，它們在英語中都有不同的含義和用法，可以用來描述不同的情況和場景。

常用短語：

1. first-born son

2. first-born child

3. first-born of a litter

4. first-born heir

5. first-born partner

6. first-born share

7. first-born stake

雙語例句：

1. He is the first-born son of the family and always feels responsible for his family"s well-being. (他是家里的長子，總是為家庭的幸福而感到責任重大。)

2. She is the first-born child in her family and is very proud of her family history. (她是家里第一個孩子，非常自豪于家族的歷史。)

3. The first-born of a litter is usually the most dominant and will often take over the role of leader. (一窩中的頭胎通常是最具支配力的，往往會接替領導角色。)

4. The first-born heir inherited the family business and has been successful in running it for years. (頭胎繼承人繼承了家族企業，多年來一直成功經營。)

5. The first-born partner has always been a leader in the company and has been instrumental in its success. (頭胎合伙人一直是公司的領導者，對于公司的成功起到了關鍵作用。)

6. The first-born share represents a significant investment and must be carefully managed to ensure its success. (頭胎股份代表了一項重大投資，必須謹慎管理以確保其成功。)

7. The first-born stake is a crucial decision that must be carefully considered before making it. (頭胎股份是一項至關重要的決定，在做出決定之前必須仔細考慮。)

英文小作文：

Title: The First-Born: A Special Role

The first-born is always a unique and special role in any family, representing the beginning and the hope of what lies ahead. Whether it"s a child, a business, or anything else, the first-born holds a special place in the hearts of those around them.

For parents, the first-born represents their legacy and hope for the future, while for siblings, they are often looked up to as a role model or even a source of inspiration. The first-born often shoulders a great deal of responsibility, whether it"s taking care of younger siblings, managing a business, or leading a team, and they must always be mindful of their responsibilities and impact on those around them.

However, being the first-born doesn"t mean being perfect or immune to challenges and difficulties. Like any other person, they are also susceptible to making mistakes and learning from them is an essential part of growth and development. But with the right support and encouragement, the first-born can rise to any challenge and become a source of inspiration for others.

In conclusion, the first-born is a special role that comes with unique responsibilities and opportunities. It"s important to remember that they are not alone in their journey and have the support of those around them to help them succeed.