at
- 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；达；因为；朝；忙于
- n. 阿特（老挝货币基本单位att）；[化]砹（极不稳定放射性元素）
- abbr. 密封的（airtight）；气温（air temperature）
词组搭配
at all
见 all
at first
at it
engaged in some activity, typically a reprehensible one
在从事（应受指责的）活动
the guy who faked the Hitler diaries is at it again.
那个伪造希特勒日记的家伙又在胡编乱写。
at last
the guy who faked the Hitler diaries is at it again.
那个伪造希特勒日记的家伙又在胡编乱写。
at least
the guy who faked the Hitler diaries is at it again.
那个伪造希特勒日记的家伙又在胡编乱写。
at most
the guy who faked the Hitler diaries is at it again.
那个伪造希特勒日记的家伙又在胡编乱写。
at once
the guy who faked the Hitler diaries is at it again.
那个伪造希特勒日记的家伙又在胡编乱写。
at that
in addition; furthermore
而且；此外
it was not fog but smoke, and very thick at that.
那不是雾而是烟，而且很浓。
not at all
where it's at
(informal)the fashionable place, possession, or activity
(非正式)时髦的地方（或物品、活动）
New York is where it's at， stylewise.
纽约是时尚方面的好去处。
at it【非正式用语】
Engaged in verbal or physical conflict; arguing or fighting
争论，冲突：口头或身体上的冲突；争论或冲突
The neighbors are at it again.
邻居们又吵起来了