单词详解
1. vt.
保护；控制 (protect against a challenge or an attack)
Two fierce dogs guarded the entrance to the castle. 在城堡的进门处，守着两只凶猛的狼狗。
2. n.
A. 警戒，警惕，守卫 (the duty of serving as a sentry)
The soldiers wear the guard on their expressions. 士兵们脸部都带有戒备的神情。
B. 卫兵 (a person who keeps watching over something or someone)
The guard won't let anyone through the gate without a pass.
卫兵不让任何没有通行证的人通过大门。
C. 警卫队 (a group of men who escort and protect some important person)
A guard consists of ten soldiers. 卫队由10个士兵组成。
D. 防御姿势 (a posture of defense in boxing or fencing)
The man dropped up his guard. 他不再做出防御姿势。
E. 防护装置 (a device designed to prevent injury)
Football players often wear shin guards to protect themselves.
为了保护自己足球运动员经常穿着护腿。
相关词组
1. guard against : 防止；预防
We must learn to guard against disease in our daily life.
日常生活中，我们必须学会预防疾病。
2. security guard : 保安人员
Two security guards were killed in the big bank raid.
在这次银行抢劫案中有两名警卫被杀害了。
3. keep guard : 站岗
Workers had to keep guard for the boss in the night. 晚上，工人们还得给老板站岗。
4. guard a pass : 把关
A main reason is that newspaper is written without guarding a strict pass.
一个重要的原因就是报纸编写把关不严。
相关单词
复数：guards
过去式：guarded
过去分词：guarded
现在分词：guarding
同义词：watch, defend, shield, protect, secure
相关链接
词语辨析：defend, protect, guard, shield, shelter
defend, protect, guard, shield, shelter
这些动词均有“保护，保卫”之意。
defend: 普通用词，指用武力或其它措施使人或物不受损害，消除危险。
protect: 普通用词，指用某种手段作为防御工具以防危险或伤害。
guard: 普通用词，指保持警惕以防可能的攻击或伤害。
shield: 侧重防止迫在眉睫的攻击或伤害。
shelter: 通常指寻找安全地方躲避风雨或使人免遭危害。
词语详解
1. defend : 普通用词，指用武力或其它措施使人或物不受损害，消除危险。
But I know there are people who defend the journalists. 但是我知道有一些人为记者辩护。
2. protect: 普通用词，指用某种手段作为防御工具以防危险或伤害。
What can our ordinary people do to protect the environment?
为保护环境，我们普通人能做些什么呢？
3. guard: 普通用词，指保持警惕以防可能的攻击或伤害。
The enemy’ purpose is to catch us off guard.
敌人的目的是想在我们失去警惕的时候逮捕我们。
4. shield : 侧重防止迫在眉睫的攻击或伤害。
Motorcyclists must wear helmets to protect them from injury.
摩托车手必须戴头盔保护自己免受伤害。
5. shelter: 通常指寻找安全地方躲避风雨或使人免遭危害。
In the storm I took shelter under the roof. 暴风雨时，我正在屋檐下躲避。
