1. 定义方面
Firstborn指的是家庭中的长子或长女，也可以泛指某一领域中的创始人或者首创者。
2. 历史方面
在犹太教和教的文化传统中，Firstborn有着特殊的地位，他们被视为家庭中的特权人物，有着更高的地位和责任。
3. 社会/文化方面
Firstborns通常会受到更多的关注和期望，他们往往承担着照顾和保护家庭其他成员的责任。同时，研究表明，Firstborns在智力和领导能力上有着更高的水平和表现。
4. 缩写词方面
Firstborn也可以缩写为‘FB’，这个缩写词通常出现在社交媒体上，用于指代用户在该平台上的第一个账号或第一个粉丝。
中英例句：
1. Tom is the firstborn in his family, and he takes great pride in being the eldest.
汤姆是家里的长子，他为自己是家里的最大儿子感到非常自豪。
2. The firstborn is always the most precious in a family, and is often held to higher standards than his or her siblings.
长子长女总是家里最珍贵的，他们通常会被要求更高的标准和责任感。
3. As the firstborn of his company, John felt an immense amount of pressure to succeed and set a positive example for his colleagues.
作为公司的创始人，约翰感到巨大的压力，他需要成功并且为同事们树立一个积极的榜样。
4. FB memories always remind me of how far I’ve come and how much I’ve grown since I first started on this platform.
FB上的回忆总是让我想起我从平台开始到现在成长了多少。
5. My FB account was my first venture into the world of social media, and it will always hold a special place in my heart.
我的FB账号是我进入社交媒体世界的第一次尝试，它在我的心中总是有一个特殊的位置。
英 [?f??stb??rn] 美 [?f??rstb??rn]
翻译：长子；长女
例句：
1. He’s their firstborn son.
他们的长子是他。
2. The firstborn child often gets the most attention in the family.
长子通常会在家庭中得到最多的关注。
firstborn的中文解释是”长子、第一胎生的”，还经常被翻译为长男，读音为[‘f?:st’b?:n]，firstborn来源于英语，在《瓦里希英汉词典》中，共找到89个与firstborn相关的例句。
1.长子
例句:And of the Shilonites; Asaiah the firstborn, and his sons. (示罗的子孙中有长子亚帅雅和他的众子。)
2.第一胎生的
例句:God commanded Moses to tell the Israelites to put lamb’s blood above their door to spare their firstborn. (上帝让摩西告诉以色列人 用羊羔血替代长子的血 涂在门上 好让长子得到赦免)
3.长男
例句:The sons of his brother Eshek: Ulam his firstborn, Jeush the second son and Eliphelet the third. (亚悉兄弟以设的长子是乌兰，次子耶乌施，三子是以利法列。)
4.头生的、长男
例句:Huz his firstborn, and Buz his brother, and Kemuel the father of Aram. (翻译:长子是乌斯，他的兄弟是布斯和亚兰的父亲基母利。)
firstborn一般作为名词、形容词使用，如在firstborn daughter(长女)等常见短语中出现较多。
firstborn daughter长女1. The sons of his brother Eshek: Ulam his firstborn, Jeush the second son and Eliphelet the third. (翻译:亚悉兄弟以设的长子是乌兰，次子耶乌施，三子是以利法列。)
2. Huz his firstborn, and Buz his brother, and Kemuel the father of Aram. (翻译:长子是乌斯，他的兄弟是布斯和亚兰的父亲基母利。)
3. And these are the names of the children of Israel, which came into Egypt, Jacob and his sons: Reuben, Jacob’s firstborn. (翻译:来到埃及的以色列人名字记在下面。雅各和他的儿孙，雅各的长子是流便。)
4. And so, there was an edict from Memphis… to kill every firstborn Hebrew boy. (翻译:然后 从孟斐斯发来了命令 要求杀死所有新生的犹太幼儿)
5. The beautiful couple announced in June they are amping up their firstborn, son Levi. (翻译:这对养眼的夫妻宣布今年xx月份他们将迎来自己的第一个孩子Levi的到来。)
6. She was my firstborn. (翻译:她是我的长女。)
7. These were the descendants of Hur, the firstborn of Ephrathah and father of Bethlehem. (翻译:这都是伯利恒之祖以法他的长子户珥所生的。)
8. Sanctify unto me all the firstborn, whatsoever openeth the womb among the children of Israel, both of man and of beast: it is mine. (翻译:13：2以色列中凡头生的，无论是人是牲畜，都是我的，要分别为圣归我。)
9. But for the price of the two hundred and seventy-three, of the firstborn of the children of Israel, that exceed the number of the Levites. (翻译:至于那超过肋未人数目，而应赎回的二百七十三个以色列子民的长子。)
10. “It has been said that if a human makes a bargain with a demon for wealth, power, or any other benefit, they must forfeit their firstborn male. (翻译:传说 如果人类为了财富 权利 或是任何其他利益 与魔鬼进行交易)
11. They didn’t take mon, or your firstborn child. (翻译:他们没有采取周一， 或者你的长子的孩子。)
12. Everyone was waiting for the firstborn boy to lead us… but he died… and I didn’t. (翻译:每个人都期盼着长子来做我们的酋长… 但他死了… 而我却活了下来)
13. Of the Shilonites: Asaiah the firstborn and his sons. (翻译:示罗的子孙中有长子亚帅雅和他的众子。)
14. And neither I, nor your father can steal from our firstborn children to benefit the second. (翻译:无论我或你父亲都不会把长子的钱 分给第二个孩子的)
15. I am Esau, your firstborn. (翻译:我是您的长子，以扫。)
firstborn作为名词、形容词的时候，其近义词以及反义词有s、firstborns等。
