• at /ət, æt/           CET4 TEM4

  • 1

    介词 You use at to indicate the place or event where something happens or is situated. 在 (某地)

    He will be at the airport to meet her.

    他将在机场见她。

    I didn't like being alone at home.

    我不喜欢独自在家。

    They agreed to meet at a restaurant in Soho.

    他们约定了在索霍区的一家餐馆里见面。

  • 2

    介词 If you are at something such as a table, a door, or someone's side, you are next to it or them. 在…旁边

    An assistant sat typing away at a table beside him.

    一名助手坐在他身边的一张桌子旁打字。

    At his side was a beautiful young woman.

    他的身边是一位漂亮的年轻女子。

  • 3

    介词 When you are describing where someone or something is, you can say that they are at a certain distance. You can also say that one thing is at an angle in relation to another thing. 以 (某距离、某角度)

    The two journalists followed at a discreet distance.

    那两名记者保持一段适当的距离跟在后面。

  • 4

    介词 If something happens at a particular time, that is the time when it happens or begins to happen. 在 (某时刻)

    The funeral will be carried out this afternoon at 3:00.

    葬礼将在今天下午3点举行。

  • 5

    介词 If you do something at a particular age, you do it when you are that age. 在 (某岁时)

    Zachary started playing violin at age 4.

    扎卡里4岁开始拉小提琴。

  • 6

    介词 If someone is at a particular school or college, they go there regularly to study. 在 (某学校)

    Their daughter is a sophomore at Yale.

    他们的女儿在耶鲁大学读大二。

  • 7

    介词 You use at to express a rate, frequency, level, or price. 以 (某速度、频率、水平或价格)

    I drove back down the motorway at normal speed.

    我以正常速度沿高速公路往回开。

    Check the oil at regular intervals, and have the car serviced regularly.

    定期检查机油，经常保养汽车。

  • 8

    介词 You use at before a number or amount to indicate a measurement. 在 (某数量)

    ...as unemployment stays pegged at three million.

    …由于失业人数维持在300万。

  • 9

    介词 If you look at someone or something, you look toward them. If you direct an object or a comment at someone, you direct it toward them. 朝 (方向)

    He looked at Michael and laughed.

    他朝迈克尔看去，笑了。

  • 10

    介词 You can use at after verbs such as "smile" or "wave" and before nouns referring to people to indicate that you have put on an expression or made a gesture that someone is meant to see or understand. 冲 (某人…)

    She opened the door and stood there, frowning at me.

    她打开门站在那里，冲我皱着眉头。

  • 11

    介词 If you point or gesture at something, you move your arm or head in its direction so that it will be noticed by someone you are with. 对着(某物)

    He pointed at the empty bottle and the waitress quickly replaced it.

    他向那个空瓶指了指，女服务员迅速换了它。

  • 12

    介词 If you are working at something, you are dealing with it. If you are aiming at something, you are trying to achieve it. 在 (某目标上)

    She has worked hard at her marriage.

    她在婚姻上已经很努力了。

  • 13

    介词 If something is done at someone's invitation or request, it is done as a result of it. 应 (某人之邀)

    She left the light on in the bathroom at his request.

    她应他的要求让浴室里的灯开着。

  • 14

    介词 You use at to say that someone or something is in a particular state or condition. 在 (某状态或情况下)

    I am afraid we are not at liberty to disclose that information.

    恐怕我们无权透露那信息。

  • 15

    介词 You use at before a possessive pronoun and a superlative adjective to say that someone or something has more of a particular quality than at any other time. 在 (某人或某事物最…的时候)

    When I'm on the soccer field, I'm at my happiest.

    当我在足球场上时，我最开心了。

  • 16

    介词 You use at to say how something is being done. 以 (某方式)

    Three people were killed by shots fired at random from a minibus.

    三个人被一辆小巴里乱射的子弹打死了。

  • 17

    介词 You use at to show that someone is doing something repeatedly. 在 (某物上反复做某事)

    She lowered the handkerchief which she had kept dabbing at her eyes.

    她放下了那块她一直在反复擦眼睛的手绢。

  • 18

    介词 You use at to indicate an activity or task when saying how well someone does it. 在 (某方面)

    I'm good at my work.

    我擅长我的工作。

  • 19

    介词 You use at to indicate what someone is reacting to. 因 (某事物)

    Elena was annoyed at having had to wait so long for him.

    埃琳娜因不得不等他那么长的时间而恼火。

  • 20

    名词 a Laotian monetary unit worth one hundredth of a kip 老特; 老挝货币单位，100老特等于1基普

  • 21

    Austria 奥地利

  • 22

    at all→seeall

at[强æt, 弱ət]

• n.
  • 1

    a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

    同义词： astatine / atomic number 85

  • 2

    100 at equal 1 kip in Laos

• 数学

  • 单价

• 电子、通信与自动控制技术

  • 异步传输 (asynchronous transmission)

  • 异步传输法

  • 非同步传输 (asynchronous transmission)

  • 安匝

  • 安

  • 业馀电台

• 计算机科学技术

  • 验收测试 (acceptance test)

  • 存取时间 (access time)

  • 会计制表 (accounting tabulating)

  • 交叉磁带 (across tape)

  • 作用时间 (action time)

  • 加法器树 (adder tree)

  • 位址转译器 (address translator)

  • 位址翻译器

  • 先进技术 (advanced technology)

  • 权限表 (authority table)

  • 安培匝 (ampere turn)

  • 异常传输 (anomalous transmission)

  • 自动电话 (automatic telephone)

  • 自动订票 (automatic ticketing)

  • 自动打字机 (automatic typewriter)

  • 辅助计时器 (auxiliary timer)

• 医药科学

  • 共济失调毛细血管扩张症 (ataxia telangiectasia)

• 奥地利

  • ... ar阿根廷 .as美属萨摩亚 at奥地利 au澳大利亚 ...

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• 单价

  • ... ius system 摄氏度 ＠ at 单价 x"是x prime(比如转置矩阵) ...

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• 仅进行一次的工作排程

  • ... history 历史记录 !55 执行第55个指令 at 仅进行一次的工作排程 crontab 循环执行的例行性命令 编辑,显示,删除任务 ...

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• 自动变速器

  • 揭秘电动轮汽车技术（二）-吉林大学新能源汽车-搜狐博客 轮驱动技术，有利于摆脱我国在传统汽车核心技术上落后而影响电动汽车研究的困境，如无级变速器(CVT)，自动变速器(AT，AMT)等。不可否认，虽然目前国内也有很多专家持反对建议，因为电动轮汽车技术安全性能一直受到质疑，电制动本身

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短语
• at last
  终于 | 最后 | 最终 | 最一
• at once
  马上 | 立刻 | 同时 | 立即
• aim at
  瞄准 | 针对 | 目的在于 | 企图
• at length
  终于 | 详细地 | 最终 | 最后
• at heart
  在内心 | 实质上 | 内心里 | 在内心里
• At present
  目前 | 现在
• at times
  有时 | 间或 | 不时 | 偶尔
• at most
  最多 | 至多 | 不超过 | 至多不超过
• at work
  在工作 | 忙于 | 上班 | 在上班

• prep.

  • 在（表示存在或出现的地点、场所、位置、空间）；以（某种价格、速度等）；向；因为；朝；忙于

    be / towards / unto / out