guard

1. V-T If you guard a place, person, or object, you stand near them in order to watch and protect them. 守卫; 护卫

Gunmen guarded homes near the cemetery with shotguns. 枪手携带猎枪守卫着公墓附近的住宅。

2. V-T If you guard someone, you watch them and keep them in a particular place to stop them from escaping. 看守

Marines with rifles guarded them. 持步枪的海军陆战队士兵看守他们。

3. N-COUNT A guard is someone such as a soldier, police officer, or prison officer who is guarding a particular place or person. 卫兵

The prisoners overpowered their guards and locked them in a cell. 囚犯们制服了卫兵，并把他们锁在一个牢房里。

4. N-SING-COLL A guard is a specially organized group of people, such as soldiers or police officers, who protect or watch someone or something. (一队) 卫兵

We have a security guard around the whole area. 我们在整个地区周围配有保安人员。

5. V-T If you guard some information or advantage that you have, you try to protect it or keep it for yourself. 保护; 保守

He closely guarded her identity. 他严密地保守她的身份。

6. N-COUNT A guard is a protective device which covers a part of someone's body or a dangerous part of a piece of equipment. 防护装置[usu with supp]

...the chin guard of my helmet. …我头盔上的下巴防护罩。

7. N-COUNT On a train, a guard is a person whose job is to travel on the train in order to help passengers, check tickets, and make sure that the train travels safely and on time. 列车员[英国英语]

8. →see also guarded , bodyguard , coastguard , lifeguard

9. PHRASE If someone catches you off guard, they surprise you by doing something you do not expect. If something catches you off guard, it surprises you by happening when you are not expecting it. 乘某人不备使其大吃一惊

Charm the audience and catch them off guard. 让观众陶醉，然后出其不意使他们大吃一惊。

10. PHRASE If you lower your guard, let your guard down or drop your guard, you relax when you should be careful and alert, often with unpleasant consequences. 放松警惕

The ANC could not afford to lower its guard until everything had been carried out. 在所有任务完成之前，非洲人国民大会丝毫不敢放松警惕。

You can't let your guard down. 你不能掉以轻心。

11. PHRASE If you are on your guard or on guard, you are being very careful because you think a situation might become difficult or dangerous. 警惕

The police have questioned him thoroughly, and he'll be on his guard. 警察已仔细盘问了他，因此他会保持警惕。

12. PHRASE If someone is on guard, they are on duty and responsible for guarding a particular place or person. 值守

Police were on guard at Barnet town hall. 警察在巴尼特市政厅值守。

13. PHRASE If you stand guard, you stand near a particular person or place because you are responsible for watching or protecting them. 站岗

One young policeman stood guard outside the locked embassy gates. 一名年轻的警察在大门紧闭的使馆外站岗。

14. PHRASE If someone is under guard, they are being guarded. 受到看守

Three men were arrested and one was under guard in a hospital. 有三人被捕，一人在医院里受到监视。