defences

"defences"的音标为[dɪˈfensz]，基本翻译为“防御工事；防卫；防卫物；防卫系统”，速记技巧为：谐音记忆：“敌分守”（敌人防守严密）。

英文词源：拉丁语“defensio”或“defendeo”，意为“防御，保护”。

变化形式：复数形式为“defences”，过去式为“defended”，过去分词为“defended”。

相关单词：

1. defence（防御，保卫）：指为了保护某物或某人而采取的措施或行动。

2. undefended（无防御的）：指没有采取任何防御措施的地方或对象。

3. defend（保卫，防御）：指为了保护某物或某人而采取行动或措施。

4. defender（防守者）：指在比赛中负责防守的人或动物。

5. defensive（防御性的）：指倾向于防御或保护的，通常与军事、安全、健康等领域有关。

6. offence（进攻）：指在比赛中从对方防守中突破，攻击对方。

7. attack（攻击）：指为了夺取某物或某人而采取的行动。

8. counter-attack（反攻）：指在对方进攻后，从防守中反击对方。

9. invincible（不可战胜的）：指无法被击败或攻破的，通常用于形容强大的防御力量。

10. fortify（加固）：指为了加强防御而采取措施，使某物更坚固。

常用短语：

1. defense system

2. air defense

3. coastal defense

4. defense line

5. defense budget

6. defense industry

7. national defense

例句：

1. The country has a strong defense system to protect itself from external threats.

2. The army is responsible for air defense of the country.

3. The coastal defense measures are being strengthened to prevent enemy invasion.

4. The defense line has been shifted to a new location to better protect the city.

5. The government has increased the defense budget to improve the military"s equipment and training.

6. The defense industry is a crucial component of the country"s economy.

7. We must always maintain a strong national defense to ensure our safety and security.

英文小作文：

Protecting Our Country"s Defences

Our country"s defense is our top priority, and it requires a strong and well-coordinated defense system to protect us from external threats. From air defense to coastal defense, we must always be vigilant and prepared to face any challenge that may come our way.

Our defense budget has been increased to improve the military"s equipment and training, and the defense industry is playing a crucial role in providing the equipment and technology that our military needs to be effective.

At the same time, we must also emphasize the importance of national defense in our daily lives, teaching our children about the importance of protecting our country and our borders, so that future generations will be ready to defend our nation when needed.

In conclusion, our country"s defense is everyone"s responsibility, and we must always maintain a strong national defense to ensure our safety and security.