before是什么意思？

before

英[bɪˈfɔ:(r)] 美[bɪˈfɔr,-ˈfor]

• prep. 在…之前，先于，优于，当着…的面，与其…；
• conj. 在…之前，在…以前，比…早些，与其…；
• adv. 先前，从前，在前，在前方；

例句

• There was a ten-mile chase before the thieves were caught up by the police car. 过了10英里路, 警察的车子才赶上盗窃犯。
• Burn the old paint off before repainting the door. 先把门上的旧漆烧掉,再刷新油漆。
• Clean down all the walls before repainting them. 把墙壁都擦洗干净再刷新油漆。
• She waited for the cat to jump before she made up her mind. 她观望了形势以后才作出决定。
• It reminded me of the mistakes I had made before. 它使我想起了以前我犯的一些错误。
• Such a thing has never been heard of before. 这种事情前所未闻。
• He had several goes at the high jump before he succeeded in clearing it. 他跳高时试跳了几次才跳过去。
• It was a thankless job, so we choked him off before long. 那是一件吃力不讨好的事情, 所以我们很快就不让他做了。
• In the swift the day before that year’s wheat harvest,a rainstorm threatened. 在那一年麦收的前一天,一场暴雨眼看就要来临。
• It never occurred to me that I had seen her before somewhere. 我想不起来以前我在哪儿见过她。

同义词

• adv.
  before的同义词之：在前;向前
  earlier, prior, formerly, advance, previously, in,
• before的同义词之：其他释义
  formerly, ahead, advance, earlier, first, anterior, previously, in, prior,

反义词

• prep.
  before的反义词之：在...以前;先于
  after, behind,
• before的反义词之：其他释义
  behind, after,

同义词解析

• 以下这两个副词均包含 "……以前" 的意思
  ago ：指从现在起往前推算一段时间，始终置于所修饰的词之后，与一般过去时连用。
  before ：或指从过去某一时间起向前推算的若干时间的以前，通常与过去完成时连用；或泛指以前，并不具体指若干时间以前，可使用现在完成的或过去时；还可指从将来某一时间起的若干时间以前。
• 以下这些前置词(短语)均含有"在……前" 的意思
  before：指空间位置或时间的"在……前"。表时间时，反义词为after；指空间位置时，其反义词是behind。
  in front of ： 指在某地方之外的前面，即不在其中，多与静态动词连用，通常可与before通用。
  in the front of ： 指在某地方之内的前面，即在其中的前部分。

柯林斯高阶英汉双解学习词典释义

• PREP
  （时间上）在…之前，早于
  If something happens before a particular date, time, or event, it happens earlier than that date, time, or event.
  例句
  Annie was born a few weeks before Christmas... 安妮出生在圣诞节前几周。 Before World War II, women were not recruited as intelligence officers... 在第二次世界大战之前，女性不能当情报人员。
• PREP
  在（做某事）之前
  If you do one thing before doing something else, you do it earlier than the other thing.
  例句
  He spent his early life in Sri Lanka before moving to England... 在移居英格兰之前，他早年是在斯里兰卡度过的。 Before leaving, he went into his office to fill in the daily time sheet. 离开前，他到自己的办公室填写了日常考勤表。
• ADV
  在（某时间或某事）以前
  You use before when you are talking about time. For example, if something happened the day before a particular date or event, it happened during the previous day.
  例句
  The war had ended only a month or so before. 战争大约一个月前才刚刚结束。
• CONJ-SUBORD
  在（他人做某事）之前
  If you do something before someone else can do something, you do it when they have not yet done it.
  例句
  Before Gallacher could catch up with the ball, Nadlovu had beaten him to it. 加拉赫还没来得及追上球，纳德洛武就已经抢先一步触到球了。
• ADV
  以前；以往；过去
  If someone has done something before, they have done it on a previous occasion. If someone has not done something before, they have never done it.
  例句
  I've been here before... 我以前来过这儿。 I had met Professor Lown before... 我以前见过劳恩教授。
• CONJ-SUBORD
  （直到…）才；（过了…）才
  If there is a period of time or if several things are done before something happens, it takes that amount of time or effort for this thing to happen.
  例句
  It was some time before the door opened in response to his ring. 他按完门铃后过了一会儿门才打开。
• CONJ-SUBORD
  （必须先具备某一条件）才能；在…之前（必须具备某一条件）
  If a particular situation has to happen before something else happens, this situation must happen or exist in order for the other thing to happen.
  例句
  There was additional work to be done before all the troops would be ready. 在全军准备就绪之前，还有一些杂事必须处理。
• PREP
  （方位）在…前面，在…面前
  If someone is before something, they are in front of it.
  例句
  They drove through a tall iron gate and stopped before a large white villa. 他们开车穿过一个大铁门，在一栋白色的大别墅前面停了下来。
• PREP
  （所经位置）在…前面
  If you tell someone that one place is a certain distance before another, you mean that they will come to the first place first.
  例句
  The turn is about two kilometres before the roundabout. 拐弯就在环岛前面约2公里处。
• PREP
  面对…（回答质询）
  If you appear or come before an official person or group, you go there and answer questions.
  例句
  The Governor will appear before the committee next Tuesday. 下周二，州长将接受委员会的质询。
• PREP
  当着…的面；在…注视之下
  If something happens before a particular person or group, it is seen by or happens while this person or this group is present.
  例句
  The game followed a colourful opening ceremony before a crowd of seventy-four thousand. 绚丽多彩的开幕式过后，这场比赛在74,000名观众的瞩目之下开始了。
• PREP
  摆在…面前；使面对；使面临
  If you have something such as a journey, a task, or a stage of your life before you, you must do it or live through it in the future.
  例句
  Everyone in the room knew it was the single hardest task before them... 房间里所有人都清楚，摆在他们面前的是最为艰巨的任务。 I saw before me an idyllic life. 展现在我眼前的是充满诗情画意的生活。
• PREP
  （重要性）超过；比…重要
  When you want to say that one person or thing is more important than another, you can say that they come before the other person or thing.
  例句
  Her husband, her children, and the Church came before her needs. 丈夫、孩子和教会都比她本人的需求重要。

英汉词典释义

• prep.
  (表示位置)在…前面
  The man standing before the blackboard is our English teacher. 站在黑板前面的那个人是我们的英语老师。
  (表示时间)先于, 在…以前
  We got up before sunrise. 我们在太阳升起之前起床。
  (表示比较)优于, 先于
  You must pay attention to this problem before every thing. 你应该首先注意这个问题。
  (表示顺序)在…之前，（次序或排列）在前面
  My name comes before his on the list. 在名单上我的名字排在他的名字前面。
  (表示目的)供…研究, 由…审判
  The criminal case comes before the court. 那桩刑事案件已送法院审理。
• conj.
  在…之前
  It will be some time before we know the full results. 还要过一些时间我们才能知道全部结果。
• adv.
  先前; 从前; 以前；过去；已经
  We saw that film before. 那部电影我们以前看过。 It came across my mind that I had met him somewhere before. 我突然意识到我曾在什么地方见过他。

英英词典释义

• Adverb
  1. earlier in time; previously;
  "I had known her before""as I said before""he called me the day before but your call had come even earlier""her parents had died four years earlier""I mentioned that problem earlier"
  2. at or in the front;
  "I see the lights of a town ahead""the road ahead is foggy""staring straight ahead""we couldn't see over the heads of the people in front""with the cross of Jesus marching on before"