英汉词典

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

    e.g. Gunmen guarded homes near the cemetery with shotguns...
           持枪者手持猎枪守卫着墓地附近的房子。
    e.g. ...the heavily guarded courtroom.
           戒备森严的法庭

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

    e.g. Marines with rifles guarded them...
           手持步枪的海军陆战队士兵监视着他们。
    e.g. He is being guarded by a platoon of police.
           有一队警察看守着他。

3. 卫兵；警卫员；看守
    A guard is someone such as a soldier, police officer, or prison officer who is guarding a particular place or person.

    e.g. The prisoners overpowered their guards and locked them in a cell.
           囚犯们制服了监狱看守，并将他们锁进了牢房。

4. （一队）卫兵；（一队）警卫
    A guard is a specially organized group of people, such as soldiers or policemen, who protect or watch someone or something.

    e.g. We have a security guard around the whole area...
           我们在该地区各处部署了保安。
    e.g. A heavily armed guard of police have sealed off the city centre.
           一队全副武装的警察已经封锁了市中心。

5. 列车长
    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.

guard的解释