1
- mass noun the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen大气, 空气：
1.1
- this substance regarded as necessary for breathing空气：
the air was stale
空气污浊
the doctor told me to get some fresh air.
医生让我多呼吸新鲜空气。
1.2
- the free or unconfined space above the surface of the earth天空, 空间, 空中：
he celebrated by tossing his hat high in the air.
他把帽子高高地抛向空中以示庆祝。
1.3
- as modifier used to indicate that something involves the use of aircraft航空, 空运：
air travel.
空中旅行。
1.4
- the earth's atmosphere as a medium for transmitting radio waves空气媒质：
radio stations have successfully sold products over the air.
电台成功地通过广播销售了产品。
1.5
- one of the four elements in ancient and medieval philosophy and in astrology (considered essential to the nature of the signs of Gemini, Aquarius, and Libra)气, 风（古代和中世纪哲学中四大元素之一, 星相学中对双子宫、宝瓶宫和天秤宫起重要作用）：
as modifier an air sign.风相。
1.6
- count noun a breeze or light wind微风, 轻风。参见LIGHT AIR.
1.7
- count noun a jump off the ground on a snowboard（踩滑雪板的）腾空而起。
- ORIGIN: Middle English: from Old French air, from Latin aer, from Greek aēr, denoting the gas.
2
air of
an impression of a quality or manner given by someone or something神情, 神气：she answered with a faint air of boredom.
她带着一丝厌倦回答。
2.1
airs
an annoyingly affected and condescending manner装腔作势, 趾高气扬, 摆架子：he began to put on airs and think he could boss us around.
他开始摆架子, 以为自己可以对我们指手画脚。
ORIGIN: late 16th cent.: from French 'air', probably from Old French aire 'site, disposition', from Latin ager, agr- 'field' (influenced by sense1).
3
- Music a tune or short melodious composition, typically a song【乐】（尤指歌曲）曲调, 小调。
- [ORIGIN: late 16th cent.: from Italian aria （see ARIA）.]
1
- with obj.（常作be aired）express (an opinion or grievance) publicly公开表达（观点, 不满）：
a meeting in which long-standing grievances were aired.
一次诉说长期冤屈的会议。
1.1
- broadcast (a programme) on radio or television广播, 播送（节目）：
the programmes were aired on India's state TV network.
节目在印度国家电视网上播出。
1.2
- archaic parade or show (something) ostentatiously〈古〉炫耀, 夸示。
2
- with obj. expose (a room) to the open air in order to ventilate it使（房间）通风：
the window sashes were lifted regularly to air the room.
窗扇定期打开给房间通风。
2.1
- Brit. warm (washed laundry) to remove dampness, typically in a heated cupboard〈英〉晾干, 烘干（已洗好的衣物）。
2.2
- no obj.(of laundry) be warmed in this way（已洗好的衣物）晾干, 烘干。
2.3
air oneself
archaic go out in the fresh air〈古〉出去透气。
短语
airs and graces
- derogatory an affectation of superiority〈贬〉装腔作势。
by air
- in an aircraft空运; 乘飞机：
all goods must come in by air.
所有的货物必须用空运。
in the air
- noticeable all around; becoming prevalent随处可见的, 弥漫的, 盛行的：
I smell violence in the air.
我闻到了弥漫着的暴力气息。
on （或off） the air
- being (or not being) broadcast on radio or television广播, 在广播/停止广播。
take the air
- go out of doors去户外。
up in the air
- (of a plan or issue) still to be settled; unresolved（计划, 问题）悬而未决的：
the fate of the power station is up in the air.
发电站的命运悬而未决。
walk （或tread /tred/）on air
- feel elated得意洋洋。