fortitudinous的音標為["f??rt?tju?d?n?s]，基本翻譯為“頑固的，固執的；令人厭煩的”，速記技巧為“forti+d+ous”。

"fortitudinous" 這個詞的詞源可以追溯到拉丁語 "fortitudinis", 意為 "endurance, perseverance in adversity"。這個詞在英語中用來形容一種堅韌不拔、不屈不撓的精神。

變化形式：在詞性上，它可以作為形容詞使用，其變化形式主要有：副詞 "fortitudinely"（表示堅韌不拔地），過去式 "fortitudinated"（表示堅韌不拔地堅持），以及過去分詞 "fortitudinated"（表示已經堅韌不拔地堅持過）。

相關單詞：

perseverance：意為“堅持不懈”，與 "fortitudinous" 都有堅韌不拔的意思。

endurance：意為“耐力”，也是堅韌不拔的體現。

stubborn：意為“頑固的，頑強的”，這個詞也含有堅韌不拔的意思。

tenacious：意為“頑強的，緊抓不放的”，這個詞也含有堅韌不拔的精神。

resolute：意為“堅決的，果斷的”，這個詞也含有堅定不移的意思。

dogged：意為“頑強的，堅持不懈的”，這個詞也含有堅韌不拔的精神。

adamant：意為“堅定的，固執的”，這個詞也含有堅定不移的意思，并常常用來形容人的性格。

unyielding：意為“不屈的，不妥協的”，這個詞也含有堅韌不拔的意思。

unrelenting：意為“無情的，持續不斷的”，這個詞強調了堅韌不拔的精神在面對困難時的無情和堅定。

總的來說，"fortitudinous" 是一個描述堅韌不拔精神的詞匯，它體現了人們在面對困難時的決心和毅力，是我們在學習和生活中應該學習和推崇的精神品質。

常用短語：

1. fortitude 堅韌不拔

例句：He showed great fortitude in the face of adversity.

2. steadfast 堅定不移

例句：She remained steadfast in her beliefs.

3. resolute 堅決的

例句：He was resolute in his determination to succeed.

4. tenacious 頑強的

例句：She was tenacious in her pursuit of her goals.

5. persevering 不屈不撓的

例句：He persevered in his efforts to complete the project.

6. unyielding 不屈的

例句：He was unyielding in his opposition to the plan.

7. undaunted 無畏的

例句：She was undaunted by the challenges ahead of her.

英文小作文：

When it comes to success, it takes a lot of grit and determination to persevere through tough times. We all face challenges in life, but it"s how we handle them that determines our success. Whether it"s a difficult project, a challenging job, or a tough personal situation, having the fortitude to persevere is what leads to achieving our goals and dreams.

In my opinion, fortitude is a crucial quality for success because it requires us to be resilient and resourceful in the face of setbacks and failures. It teaches us to keep going, even when things seem hopeless, and to never give up on our dreams. By cultivating this quality, we can turn our weaknesses into strengths and achieve our goals with persistence and determination.