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N-UNCOUNT
空气；大气
Air is the mixture of gases which forms the earth's atmosphere and which we breathe.
例句
Draughts help to circulate air...
穿堂风有助于空气流通。
Keith opened the window and leaned out into the cold air.
基思打开窗户，探出身到冷风中。
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N-SING
天空；空中；空间
The air is the space around things or above the ground.
例句
Government troops broke up the protest by firing their guns in the air...
政府军队朝天鸣枪驱散了抗议人群。
People's cigarette smoke seemed to hang in the air.
人们吸烟的烟雾似乎会长时间滞留在空气中。
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N-UNCOUNT
空运；航空
Air is used to refer to travel in aircraft.
例句
Air travel will continue to grow at about 6% per year...
乘飞机旅行的人数将以每年大约6%的速度持续增加。
Casualties had to be brought to hospital by air.
伤者不得不用飞机送往医院。
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N-COUNT
（简单易记的）曲调，旋律
An air is a simple tune which can be easily recognized and remembered.
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N-SING
神态;感觉;总体印象;氛围
If you say that someone or something has a particular air, you mean that they give this general impression.
例句
Jennifer regarded him with an air of amusement...
珍妮弗觉得他很风趣。
The meal gave the occasion an almost festive air.
这一餐使整个场合有了近乎节日般的喜庆氛围。
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N-PLURAL
矫揉造作；装腔作势；做作
If you say that someone is putting on airs or giving themselves airs, you are criticizing them for behaving as if they are better than other people.
例句
We're poor and we never put on airs.
我们贫穷但从不装腔作势。
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VERB
（通过电视或无线电）播送，播放
If a broadcasting company airs a television or radio programme, they show it on television or broadcast it on the radio.
例句
Tonight PBS will air a documentary called 'Democracy In Action'.
今晚公共广播公司将播放一部名为《民主进行时》的纪录片。
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VERB
使公开；宣扬
If you air your opinions, you make them known to people.
例句
They sat for more than six hours, and both sides agreed they had aired all their differences...
他们一起坐了六个多小时，而且双方都认为他们已经表达了所有的不同意见。
The whole issue was thoroughly aired at the meeting.
在会上完全公开了整个问题。
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VERB
使通风
If you air a room or building, you let fresh air into it.
例句
One day a week her mother systematically cleaned and aired each room.
她母亲按部就班地每周一次清扫所有的房间并开窗通风。
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VERB
烘干（衣物、被褥）
If you air clothing or bedding, you put it somewhere warm to make sure that it is completely dry.
例句
When the shirts were clean, I ironed them myself, aired them and placed them in drawers in his room.
衬衫洗干净之后，我自己将它们熨好、烘干并放在他房间的抽屉里。
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PHRASE
消除分歧;解决问题
If you do something to clear the air, you do it in order to resolve any problems or disagreements that there might be.
例句
...an inquiry just to clear the air and settle the facts of the case.
一项只为消除疑团并弄清案件事实而进行的调查
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PHRASE
大模大样;摆架子;装腔作势
If you refer to someone's airs and graces, you mean that they behave in a way that shows that they think they are more important than other people.
例句
The old cliché of the customer being always right is what gives them airs and graces.
“顾客总是对的”这种陈词滥调让他们变得趾高气扬。
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PHRASE
可感觉到;可被意识到
If something is in the air it is felt to be present, but it is not talked about.
例句
There was great excitement in the air...
人人都感到无比激动。
She walked away and left the question hanging in the air.
她走开了，将疑问留在人们心里。
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PHRASE
播送（广播、电视节目）；（广播、电视节目）播放/停止播放
If someone is on the air, they are broadcasting on radio or television. If a programme is on the air, it is being broadcast on radio or television. If it is off the air, it is not being broadcast.
例句
She is going on the air as presenter of a new show...
她即将上电视主持一档新节目。
Rockwell hopes the program can be on the air within a year...
罗克韦尔希望该节目能在一年内播出。
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PHRASE
（消失得）无影无踪/突然神秘地（出现）
If someone or something disappears into thin air, they disappear completely. If someone or something appears out of thin air, they appear suddenly and mysteriously.
例句
'But where could they have gone?' he demanded. 'They can't just vanish into thin air!'...
“但是他们可能去哪里呢？”他追问道，“他们不可能就神秘消失了!”
He had materialized out of thin air; I had not seen or heard him coming.
他突然间神秘地出现了；我既没看见他来，也没听见他的脚步声。
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PHRASE
悬而未决；未决定
If you say that a decision or a situation is up in the air, you mean that it has not yet been completely settled or planned.
例句
He told reporters today that the president's trip to Moscow is up in the air.
今天他告诉记者们总统是否前往莫斯科尚未确定。
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PHRASE
非常高兴；兴高采烈
If you say that you are walking on air or floating on air, you mean that you feel extremely happy about something.
例句
As soon as I know I'm in the team it's like I'm walking on air.
一得知我加入了这个队，我高兴得像飞上了天。