at

在(某地点)内、附近或邻近。

In, near, or in the general vicinity of (a particular place).

出席或发生在(某事件)期间。

Present or taking place during (an event).

表示发生的时间,尤指某一时刻,或从说话者角度看相对较短的一段时间。

Indicating time of occurrence, especially an instant of time, or a period of time relatively short in context or from the speaker’s perspective.

朝......方向；向......(常暗含敌意或漫不经心)。

In the direction of; towards; (often implied to be in a hostile or careless manner).

表示针对某物的动作,尤指持续或反复的动作。

Indicating action bearing upon something, especially continued or repeated action.

作为对......的回应或反应。

In response or reaction to.

从事(某项活动)。

Occupied in (activity).

处于......状态。

In a state of.

受......约束；易遭受。

Subject to.

表示价格。

Denotes a price.

表示在刻度或序列中的位置。

Indicates a position on a scale or in a series.

在某些短语中,用于表示某事发生或完成的方式。

In certain phrases, used to indicate the manner in which something happens or is done.

表示某物保持的特定速度或速率。

Indicates a specific speed or rate that is maintained by something.

表示手段或方法。

Indicates a means or method.

关于；至于。

On the subject of; regarding.

亦用于各种其他习语组合:at a pinch、at all、at fault、at pains、at risk、at that 等；参见各条目。

Also used in various other idiomatic combinations: at a pinch, at all, at fault, at pains, at risk, at that, etc.; see the individual entries.