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VERB
守衛(wèi)；護(hù)衛(wèi)；警衛(wèi)
If you guard a place, person, or object, you stand near them in order to watch and protect them.
例句
Gunmen guarded homes near the cemetery with shotguns...
持槍者手持獵槍守衛(wèi)著墓地附近的房子。
...the heavily guarded courtroom.
戒備森嚴(yán)的法庭
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VERB
看守；監(jiān)視
If you guard someone, you watch them and keep them in a particular place to stop them from escaping.
例句
Marines with rifles guarded them...
手持步槍的海軍陸戰(zhàn)隊(duì)士兵監(jiān)視著他們。
He is being guarded by a platoon of police.
有一隊(duì)警察看守著他。
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N-COUNT
衛(wèi)兵；警衛(wèi)員；看守
A guard is someone such as a soldier, police officer, or prison officer who is guarding a particular place or person.
例句
The prisoners overpowered their guards and locked them in a cell.
囚犯?jìng)冎品吮O(jiān)獄看守，并將他們鎖進(jìn)了牢房。
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N-SING-COLL
（一隊(duì)）衛(wèi)兵；（一隊(duì)）警衛(wèi)
A guard is a specially organized group of people, such as soldiers or policemen, who protect or watch someone or something.
例句
We have a security guard around the whole area...
我們?cè)谠摰貐^(qū)各處部署了保安。
A heavily armed guard of police have sealed off the city centre.
一隊(duì)全副武裝的警察已經(jīng)封鎖了市中心。
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N-COUNT
列車長(zhǎng)
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.
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VERB
保護(hù)；保守；遮掩
If you guard some information or advantage that you have, you try to protect it or keep it for yourself.
例句
He closely guarded her identity.
他對(duì)她的身份守口如瓶。
...a threat to the country's jealously guarded unity.
對(duì)該國珍惜維護(hù)的統(tǒng)一局面的威脅
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N-COUNT
保護(hù)裝置；保護(hù)罩；保護(hù)器
A guard is a protective device which covers a part of someone's body or a dangerous part of a piece of equipment.
例句
...the chin guard of my helmet...
我頭盔上的下巴保護(hù)罩
A blade guard is fitted to protect the operator.
為保證操作人員的人身安全安裝了槳葉保護(hù)罩。
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N-IN-NAMES
（英國的）近衛(wèi)軍，禁軍，近衛(wèi)軍士兵
Some regiments in the British Army, or the soldiers in them, are referred to as Guards.
例句
...the Grenadier Guards.
英國近衛(wèi)步兵團(tuán)
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PHRASE
乘（人）不備；使猝不及防
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.
例句
Charm the audience and catch them off guard...
吸引觀眾的注意力，然后給他們來個(gè)出其不意。
The invitation had caught me off guard.
收到這份邀請(qǐng)讓我頗感意外。
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PHRASE
喪失警惕；放松警惕；不提防
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.
例句
The ANC could not afford to lower its guard until everything had been carried out...
非洲人國民大會(huì)在所有事項(xiàng)皆已完成前不敢有絲毫松懈。
You can't let your guard down...
你不能放松警惕。
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PHRASE
派人守衛(wèi)；安排看守
If you mount guard or if you mount a guard, you organize people to watch or protect a person or place.
例句
They've even mounted guard outside the main hotel in the capital...
他們甚至派人在首都的大飯店外面站崗。
Police mounted round-the-clock guards on properties last night.
警方昨晚通宵值守財(cái)物。
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PHRASE
警惕；提防
If you are on your guard or on guard, you are being very careful because you think a situation might become difficult or dangerous.
例句
The police have questioned him thoroughly, and he'll be on his guard...
警方已經(jīng)對(duì)他進(jìn)行了詳細(xì)的盤問，因此他會(huì)保持戒備心理。
He is constantly on guard against any threat of humiliation.
他時(shí)刻提防著任何有辱尊嚴(yán)之事。
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PHRASE
站崗；值班
If someone is on guard, they are on duty and responsible for guarding a particular place or person.
例句
Police were on guard at Barnet town hall.
警察在巴尼特市政廳值守。
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PHRASE
站崗；放哨
If you stand guard, you stand near a particular person or place because you are responsible for watching or protecting them.
例句
One young policeman stood guard outside the locked embassy gates.
一位年輕的警察在大門緊閉的使館外站崗。
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PHRASE
在…看守之下
If someone is under guard, they are being guarded.
例句
Three men were arrested and one was under guard in hospital.
有3人被逮捕，1人在警方監(jiān)護(hù)下送醫(yī)院治療。