defense作为名词，在英语中常表示“防御、防卫、辩护”等含义。常见的造句包括：He spoke in defense of his actions. 以及 The army was responsible for the country's defense. 注意区分动词defend，后者用于主动动作。 在科技和体育领域，defense也常指“防守方”或“防御系统”，例如：The software provides advanced defense against malware. 对于初学者，可先掌握in defense of（为……辩护）、self-defense（自卫）等固定搭配。更多例句：She wrote an article in defense of free speech. The team improved its defense this season.

【常见问题】

问题1：如何用defense造句表示自我防卫？

回答1：可使用短语self-defense，例如：She learned martial arts for self-defense purposes. 另一常见句式：He claimed he acted in self-defense during the attack.

问题2：defense和defend在造句时有什么区别？

回答2：defense是名词，常用于in defense of或as a defense等结构；defend是动词，直接接宾语。例如：Their defense was weak. 对比：They tried to defend the castle. 注意defense在美式英语中拼写为defense，英式英语为defence。

问题3：能否用defense造句描述法律辩护场景？

回答3：当然，例如：The lawyer’s defense of the accused was based on alibi evidence. 另一例：The courtroom was packed for the final defense arguments.