demonstrated的音標是[d??mɑ?ns?st(?)d]，基本翻譯是“證明；演示；展示”，速記技巧是：de-諧音“得”+ men-男人+strate-策略+ -ed表示做過的事情。

英文詞源：

demonstrated：源自拉丁語“demonstrare”，意為“展示，證明”。

變化形式：

過去式：demonstrated

過去分詞：demonstrated

現在分詞：demonstrating

復數：demonstrations

相關單詞：

1. demonstration：示范，展示，示威游行

2. demonstrative：指示的，指示的代詞

3. demonstrate knowledge：展示知識

4. demonstrate skills：展示技能

5. demonstrate understanding：展示理解

6. disdemonstrated：未展示的，未證明的

7. demonstrator：演示者，示范者

8. demonstrative pronoun：指示代詞

9. demonstrative adjective：指示形容詞

10. demonstrative case：指示代詞的用法，指示語氣的用法

這些單詞都與“demonstrate”這個單詞有關，表示展示、證明、示范、展示知識、技能等含義。這些單詞在英語中廣泛使用，并且具有不同的含義和用法。

常用短語：

1. demonstrate one"s ability

2. demonstrate one"s skills

3. demonstrate one"s knowledge

4. demonstrate a point

5. demonstrate a theory

6. demonstrate a concept

7. demonstrate a solution

例句：

1. He demonstrated his ability to solve complex problems by solving a difficult math problem in class.

2. She demonstrated her skills as a chef by preparing a delicious meal for her family.

3. The teacher used examples to demonstrate the concept of addition and subtraction to the students.

4. The scientist used experiments to demonstrate the theory of evolution to the public.

5. The salesperson demonstrated the product"s features and benefits to potential buyers.

6. The artist used color and line to demonstrate the essence of their message in their paintings.

7. She has demonstrated time and time again that she is capable of handling any situation that comes her way.

英文小作文：

Today, I had the opportunity to demonstrate my skills in public speaking. I was nervous at first, but once I started speaking, I felt more confident and comfortable with my words. I used examples from my own experiences to illustrate my points and engage the audience, and I found that it was easy to connect with them and make them understand my message. I realized that public speaking is not just about speaking loudly and clearly, but also about using effective communication skills and engaging the audience in a meaningful way. I am proud of myself for successfully demonstrating my skills in this way, and I hope to continue to improve in this area in the future.