为了免遭敌人的攻击，他们保护这座城市。的翻译：From enemy attacks, they protect the city. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

In order to attack from the enemy, they protect the city.

From enemy attacks, they protect the city.

In order to avoid enemy's attack, they protect this city.

In order to avoid enemy attacks, they protect the city.

From enemy attacks, they protect the city.