defense

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
防御是指为保护自身、他人或事物免受攻击、伤害或危险而采取的行动或措施,常用于军事、法律、体育等领域。

用法要点

介词搭配

defense 常与介词 against 连用,表示防御的对象或目标,强调对抗性。

• defense against attack
• defense against disease
• defense against criticism

句型结构

defense 可用作主语、宾语或定语,常见于被动语态或与动词搭配,如 mount a defense(组织防御)。

• The defense was strong.
• They put up a good defense.
• He is in charge of the defense.

语域说明

defense 在美式英语中拼写为 defense,英式英语中常拼写为 defence,但两者含义相同,广泛用于正式和非正式语境。

• legal defense (美式)
• national defence (英式)
• self-defense (通用)

基础例句

The team's defense was excellent, and they won the game 2-0.

球队的防守非常出色,他们以2-0赢得了比赛。

She always carries pepper spray for self-defense when walking alone at night.

她晚上独自走路时总是带着胡椒喷雾用于自卫。

The lawyer presented a strong defense in court to protect his client.

律师在法庭上提出了有力的辩护来保护他的客户。

高级例句

The company invested heavily in cybersecurity defense to prevent data breaches.

公司在网络安全防御上投入巨资,以防止数据泄露。

In international law, the right to self-defense is a fundamental principle under the UN Charter.

在国际法中,自卫权是《联合国宪章》下的基本原则。

The research focuses on the body's immune defense mechanisms against viral infections.

这项研究专注于身体对抗病毒感染的免疫防御机制。

高频搭配

verb

mount a defenseput up a defensestrengthen defenseorganize defensebreak through defense

adjective

strong defenseweak defenselegal defensenational defenseself-defense

noun

defense systemdefense mechanismdefense attorneydefense budgetdefense strategy

adverb

actively defendeffectively defendpoorly defendvigorously defend

preposition

in defense ofon defensefor defenseagainst defense

phrase

line of defenseact of defensepoint of defensemeans of defense

常见错误

❌ 错误:He used defense to protect himself from the cold.
✓ 正确:He used a coat to protect himself from the cold.

defense 通常指对抗攻击或危险的行动,不适用于抵御自然元素如寒冷;应使用具体物品如外套。

❌ 错误:The defense of the building is very old.
✓ 正确:The defense system of the building is very old.

defense 作为抽象名词,常需与具体名词如 system 搭配,以明确指防御体系而非泛指防御概念。

近义词辨析

protection

protection 更广泛,指任何形式的保护或防护措施,可能不涉及主动对抗;defense 强调主动抵御攻击或威胁。

Wearing a helmet provides protection (一般防护), while a shield is used for defense (主动防御) in battle.

guard

guard 通常指人或物担任警戒或保卫角色,更具体;defense 可指整体防御策略或系统,更抽象。

The security guard (具体守卫) watches the entrance, but the national defense (抽象防御) includes military forces.