impugn的音標是[?m?pju?n]，基本翻譯是“非難，指責；質疑”，速記技巧是：im-表示“不，非”，pu-諧音“撲”，-gn表示名詞后綴。

Impugn: 詞源同 impugn. Impugnable，impugingly。

變化形式: Impugner，impugnation，impugnatory，impugning。

相關單詞:

1. Impugner: 指質疑者、攻擊者。這個詞來源于impugn，意思是質疑的人或攻擊的人。

2. Impugnation: 指對某事物的質疑和批評，通常用于法律、政治等領域。這個詞來源于impugn，意思是質疑和批評。

3. Impugning: 指對某事物進行質疑和批評的行為。這個詞來源于impugn，意思是質疑和批評的行為。

例句: The evidence was impugned by the defense. (證據受到辯方的質疑。)

解釋: Impugn是一個表示質疑、批評的詞，其變化形式和相關單詞都與這個意思有關。這些單詞在英語中都有不同的用法，可以用于各種語境中表達對某事物的質疑和批評。

常用短語：

1. impugn sb"s character

2. impugn sb"s motives

3. impugn the evidence

4. impugn the verdict

5. impugn one"s credibility

6. impugn one"s judgment

7. impugn one"s integrity

例句：

1. He impugned the witness"s credibility, saying that she had made up the story.

2. The judge impugned the jury"s verdict, saying that they had been influenced by improper factors.

3. She was accused of impugning the integrity of the election process by claiming that the results were rigged.

4. His judgment was impugned by those who disagreed with his decision.

5. The defendant"s lawyers are trying to impugn the witness"s testimony by suggesting that he is lying.

6. The accusation was quickly dismissed by those who knew him, as it was clearly an attempt to impugn his reputation.

7. The evidence presented at trial was sufficient to impugn the defendant"s guilt, but he still maintains his innocence.

英文小作文：

When we face a challenge, we often rely on our character and integrity to guide us through it. However, sometimes we may be accused of lacking these qualities, and it can be difficult to prove our innocence. In such cases, we must be careful not to impugn our opponents or accusers, as this can only make the situation worse. Instead, we should focus on presenting our case in a fair and objective manner, and let the evidence speak for itself. If we are innocent, we will eventually be vindicated, and if we are not, we will learn from our mistakes and move forward with renewed strength and determination.