guard的过去式是什么

1. 看守，监视，守卫，防守，把守
2. 控制
3. 使谨慎
4. 警惕，提防
5. 预防，防止，防范
6. 给...加保护装置
7. 对...进行校正检查
8. 保卫，防卫，防护，守护，保护
9. 监管，管制
10. 看管，管束
11. 小心避免，当心
12. 护送

1. 看守，守卫，看守员，看守者
2. 警戒，防守，保卫
3. 卫兵，哨兵，警卫，警备员
4. 皇家禁卫军
5. 防御姿势
6. 防护装置
7. 护卫队，警卫队
8. 防护物
9. 列车长，列车员
10. 防卫者

1. a person who keeps watch over something or someone
2. the person who plays that position on a football team;

   "the left guard was injured on the play"
   

3. a device designed to prevent injury or accidents
4. a posture of defence in boxing or fencing;

   "keep your guard up"
   

5. the person who plays the position of guard on a basketball team
6. a military unit serving to protect some place or person
7. a precautionary measure warding off impending danger or damage or injury etc.;

   "he put an ice pack on the injury as a precaution"
   "an insurance policy is a good safeguard"
   "we let our guard down"
   

8. the duty of serving as a sentry;

   "he was on guard that night"
   

9. (American football) a position on the line of scrimmage;

   "guards must be good blockers"
   

10. a position on a basketball team

1. to keep watch over;

   "there would be men guarding the horses"
   

2. watch over or shield from danger or harm; protect;

   "guard my possessions while I'm away"
   

3. protect against a challenge or attack;

   "Hold that position behind the trees!"
   "Hold the bridge against the enemy's attacks"
   

4. take precautions in order to avoid some unwanted consequence;

   "guard against becoming too friendly with the staff"
   "guard against infection"
   

1. 警卫：5:警戒塔 产生警卫(Guard),消除居民的不安,打击犯罪. 警戒塔不是必须的,由于它会对吸引力造成不利的影响,所以如果你的居民区建设的很好,工资和税收水平都比较合理,城市的经济状况也十分良好,社会安定,这样的情况下警戒塔其实不建更好.

2. guard

2. 后卫：以NBA习惯来说,后卫(guard)是有两位,控球后卫与得分后卫,NBA会将之概括化,那是因为-NBA球员技术已达全面境界,技术、观念瞬间转变轻而易举,因此对控球后卫与得分后卫统称后卫;但个人认为,以现代业余球员其技术与观念,

3. 保护：除需要拟合准确的试验公式外,还需同时测量水与冰水混合物的电阻率,从而直接计算出蓄冰率,并且需要对保护(Guard)电极进行探讨,以获得良好的精度、稳定性和通用性的测量方法.

4. 守卫：守卫(Guard) 守卫(Guard) 顺风耳告诉你:守卫的道行已达已证大道的境界. 在四门中个站了个npc,分别是 水神(Shui shen) 雷神(Lei shen)风神(Feng shen) 火神(Huo shen) 杀了他们,就会从他们身上各掉下一至于我们中华民族的祖先轩辕黄帝站在这干什么的呢?

5.guard：g.; 后卫

guard against (v.+prep.)

避免,预防 take precaution to avoid sth
guard against sth/v-ing

We must guard against accident.

我们必须谨防事故。

We must guard against such a situation.

我们必须警惕这样的局面。

Guard against mispronunciation when you learn a foreign language.

学外语时要提防发音错误。

You must guard against catching a cold.

你一定要防止得感冒。

guard sb/oneself/sth against sth

Take this medicine regularly, it will guard you against a return of the illness.

按时服此药可防止你旧病复发。

He guarded himself against vice.

他避免坏习惯。

Wear a hat to guard your face against the sun.

戴顶帽子可以遮阳光。

We were guarded by sentries against surprise attack.

我们由哨兵守卫,以免遭受突然袭击。

guard from (v.+prep.)

保护 keep from danger
guard sb/sth from sb/sth/v-ing

I will guard you from all dangers.

我会保护你,使你不受任何危险。

The wall guards the place from thieves.

围墙保护此地不受盗贼之扰。

This medicine will guard you from a cold.

这种药将会帮助你预防感冒。

The fence along the middle of the road is intended to guard vehicles from crashing into each other.

道路中央的防护栏是为防止汽车相撞而设的。

a guard against

防护…的物件 (part of an) article or apparatus designed to prevent injury or loss

off (one's) guard

毫无防备 unprepared for an attack, a surprise or a mistake

on guard

站岗 on duty

on one's guard

防备… defence sb/sth
on one's guard against sb/sth/v-ing

Be on your guard against thieves.

当心小偷。

We shall have to be on our guard against making mistakes like that in the future.

我们今后必须防止发生类似错误。

stand guard over

守卫 act as a sentry

• The main gate..was locked at night so that no guard was necessary.

  出自：P. Bowles

• Armoured cars with alert guards went by.

  出自：R. Ellison

• Sail it alone to the coastguard station and tell the guards to come and help us.

  出自：E. Ardizzone

• The talisman which..guards a house against the evil eye.

  出自：L. Durrell

• To his uncle's wife he said nothing, guarding his purpose from her.

  出自：P. S. Buck

• The entrance..was sealed off by a..gate guarded by heavily armed soldiers.

  出自：A. MacLean

guard, defend, protect, safeguard, shield

这组词的共同意思是“保护”。其区别是：

1.defend指对迫在眉睫的危险或侵袭而采取武力或其他手段防御,也可指为某人辩护或捍卫原则的纯洁性; guard指小心翼翼地保持警惕,防止实际存在的或可能发生的危险,以确保人身安全; safeguard指采用保护措施防御潜在的危险; protect指借用某种东西作为防御、保护的工具,使人或物免受伤害; shield指将防护物置放在保护者和伤害物之间,有遮挡的意思。例如:

The soldiers defended the castle.士兵们守卫城堡。

The player was guarded closely by her opponent.那名运动员被她的对手紧紧地看住。

This special cream will protect your skin from the burning sun.这种独特的乳霜可以保护皮肤免受烈日的伤害。

This agreement will safeguard the newspapers from government interference.这项协定将保护报界免遭政府干预。

The police were equipped with riot shields.警察配备了防护盾牌。

2.protect和shield两者相比较, shield在避开危险的成功率上没有protect高。

3.这组词中语气最强烈的是safeguard。

guard, guardian

这两个词都有“看守者”“守卫者”的意思。其区别是：

1.guard的目的是为了防止、防御危险或攻击,防止犯人逃跑、闹事等; 而guardian指捍卫或保卫某种信仰、自由、主义等。例如:

He effected his escape by slogging a guard.他猛击了一名看守,然后成功地逃跑了。

A minister or a priest is considered a guardian of faith.牧师和教士被认为是信仰的护卫者。

2.guardian还可指法律上所承认的某人的“监护人”,而guard则没有此义。例如:

Mr. Smith is the guardian of that boy.史密斯先生是那个孩子的监护人。

3.guard的复数形式guards常指警卫队,而guardian则没有此用法。

defend，protect，safeguard，guard，shield，shelter，harbour

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。用作比喻时，指坚持某种行动、决定或意见。

protect普通用词，指用某种手段作为防御工具以防危险或伤害。

safeguard语气强，指采取积极措施预防可能发生的一切攻击或危险。

guard普通用词，指保持警惕以防可能的攻击或伤害。

shield语气比protect强，但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。

harbour贬义词，指隐匿或非法保护、窝藏。