demotivate的音標為[?d?m??t??ve?t]，基本翻譯為“使失去積極性；使泄氣”。

速記技巧：可以將該單詞拆分為“de-”和“motivate”兩個部分，“de-”表示否定，而“motivate”意為“激勵”。因此，可以將該單詞理解為“否定激勵”，從而更好地記憶。

Demotivate的詞源可以追溯到拉丁語“de-” (表示“向下”) 和“motio” (表示“移動”或“激勵”) 。因此，該詞的含義是“使向下移動”或“使失去激勵”。

變化形式：通常為形容詞形式，即de-motivated。

相關單詞：

1. Disappoint：這個詞與“motivate”相反，表示使失望或失去動力。其詞源可以追溯到拉丁語“dis-”（表示“相反”或“不”）和“pati” （表示“忍受”或“承受”）結合而成。

2. Inertia：這個詞來源于拉丁語“in-”（表示“不”或“沒有”）和“motus” （表示“運動”或“動力”）結合而成，意為“沒有動力”或“慣性”。

3. Dishearten：這個詞表示使失去勇氣或信心，其詞源可以追溯到拉丁語“dis-”（表示“相反”或“不”）和“hearten” （表示“使振奮”）。

4. Disillusion：這個詞表示使失去幻想或信仰，其詞源可以追溯到拉丁語“dis-”（表示“相反”或“不”）和“illusion” （表示“幻想”或“錯覺”）。

5. Apathy：這個詞表示缺乏熱情或興趣，其詞源可以追溯到希臘語“a-”（表示“無”或“不”）和“pathos” （表示“感情”或“情感”）。

6. Disengage：這個詞表示使脫離或退出，其詞源可以追溯到拉丁語“dis-”（表示“相反”或“不”）和“engage” （表示“參與”或“連接”）。

7. Dislodge：這個詞表示使移開或擺脫，其詞源可以追溯到拉丁語“dis-”（表示“相反”或“不”）和“l(fā)odge” （表示“住處”或“安置”）。

8. Disperse：這個詞表示分散或驅散，其詞源可以追溯到拉丁語“dis-”（表示“相反”或“不”）和“sparens” （表示“聚集”或“聚集物”）。

9. Disillusionment：這個詞表示幻滅或失望，其詞源與上述單詞相同，都與拉丁語中的"dis-illusion"有關。

10. Disengagement：這個詞是一個名詞，表示脫離戰(zhàn)斗、工作或其他活動的過程，其詞源與上述單詞相同，都與拉丁語中的"dis-engage"有關。

常用短語：

1. demotivate sb from doing sth

2. demotivate sb

3. be demotivated

4. be demotivated by sth

5. be demotivated to do sth

6. be demotivated oneself

7. be demotivated oneself from doing sth

雙語例句：

1. The teacher"s negative comments demotivated me from participating in the class discussion.

2. The failure to reach my goal demotivated me.

3. I was demotivated by the long hours of work.

4. I was demotivated by my lack of progress in my studies.

5. I am demotivated myself from doing my homework because it is boring.

6. I am demotivated myself from exercising because it is difficult.

7. The thought of having to work a 9-5 job demotivates me from pursuing my career goals.

英文小作文：

Title: The Power of Motivation and Demotivation

Motivation and demotivation are powerful forces that shape our lives and determine our success or failure. We all face situations that can demotivate us, whether it"s a challenging task, a setback, or a lack of progress, but it"s how we respond to these situations that determines our success.

On the other hand, motivation is what drives us to overcome obstacles and achieve our goals. It"s that inner drive that keeps us going when things get tough and helps us persevere when faced with challenges. When we are motivated, we are able to push beyond our limitations and achieve things we never thought possible.

However, motivation and demotivation are not just external forces, they can also be internal. We can demotivate ourselves by giving up too easily or by not setting realistic goals. Conversely, we can motivate ourselves by setting challenging goals and pushing ourselves to achieve them, even when faced with obstacles and setbacks.

In conclusion, motivation and demotivation are essential forces that shape our lives and determine our success or failure. It"s important to recognize when we are being demotivated and take steps to address it, while also motivating ourselves to achieve our goals and reach our full potential.