in defense的音標是["?n ?defens]。基本翻譯是“在防御中；為防御而戰”。速記技巧是：in-防-de-fens。

in defense的英文詞源是：

defense：防御，防衛

in defense來源于拉丁語in defensor，表示“在防御者”或“在防衛者”。這個詞源可以追溯到拉丁語中的defensio，意為“防御，防衛”。

變化形式：

復數形式：defenses

過去式：defended

過去分詞：defended

現在分詞：defending

相關單詞：

1. defender：防守者，防御者

2. defensive：防御的，防衛的

3. defend：防御，保衛

4. defenseless：無防御的，無法防御的

5. offence/offense：進攻，侵害

6. attack：攻擊，進攻

7. counterattack：反擊，反攻

8. retreat：撤退，退卻

9. fortify：筑壘，加強防御

10. invincible：不可戰勝的，無敵的。

以上這些單詞都與in defense有著密切的聯系，它們都表示與防御、防衛、攻擊等相關的概念。在英語中，這些單詞的使用也反映了人們對防御和攻擊的理解和態度。

常用短語：

1. in defense of

2. in defense against

3. put up a defense

4. make a defense

5. put on the defense

6. take the defense

7. on the defensive

例句：

1. He quickly put up a defense against the accusations.

2. She made a defense of her friend who had been accused of cheating.

3. The defense lawyer put on a strong case for his client.

4. The defense team made a last-minute push for a new trial.

5. The team was on the defensive after falling behind in the game.

6. They were criticized for their lack of defense in the game.

7. She was on the defensive after admitting to the mistake.

英文小作文：

Today, I faced a challenge that required me to put up a defense against my opponent"s attacks. Although I was initially on the defensive, I managed to regain my composure and put up a strong defense that eventually led to victory. I realized that in order to succeed, I needed to be prepared and willing to defend myself against any attack. This experience taught me that courage and resilience are essential in any challenge, whether it"s in sports or in life.