effortfulness的音標為["ef?:tn?s]，基本翻譯為“努力”。

速記技巧：可以通過提取單詞的關鍵元音和輔音字母來快速記憶，即"ef-or-t-nu-s"。

effortfulness這個詞的詞源可以追溯到拉丁語和希臘語，表示“努力”和“能力”。它的變化形式包括過去式、過去分詞和現在分詞等。相關單詞包括effort（努力）、endeavor（努力）、exert（運用）、endegore（努力過、費力）、strenuous（努力的）、tireless（不懈的）、ardent（熱心的）、diligent（勤奮的）、persevering（堅持不懈的）和assiduous（勤勉的）。

effortfulness這個詞描述的是一個人或事物在面對困難或挑戰時展現出的努力和毅力，這個詞強調了人們在面對困難時所展現出的積極性和堅韌不拔的精神。這些相關單詞在英語中都扮演著重要的角色，描述著人們在各種情境下的努力和奮斗，也反映了英語詞匯的豐富性和多樣性。

具體字數限制無法在此處一一詳述每個單詞的具體含義和用法，但可以簡要介紹每個單詞的大致情況。如需更多信息，可以查閱英語詞典或參考相關英語語法書籍。

常用短語：

1. effortful process

2. make an effort

3. put effort into

4. effortlessly

5. effort in speech

6. effort to do

7. effort to succeed

例句：

1. The process of learning a new language is an effortful one.

2. She made an effort to finish the task despite the difficulties.

3. We should put effort into learning new things.

4. He spoke effortlessly in a foreign language.

5. Her speech betrayed an effort to control her emotions.

6. She is making an effort to overcome her shyness.

7. He is making every effort to succeed in his new job.

英文小作文：

When it comes to success, effort is key. Success does not happen overnight, but requires sustained effort and hard work. Whether it"s learning a new skill, achieving a personal goal, or just getting through the day, effort is essential. Without it, we would never achieve our goals or make progress in life. However, effort does not have to be painful or exhausting. It can be enjoyable and even fun, if we approach it with the right attitude and approach. By setting small, manageable goals and rewarding ourselves for our progress, we can turn what might have been a drudgery into something that is fulfilling and rewarding. In the end, success is not just about what we accomplish, but also about the journey of getting there and the effort it takes to get there.