air

1. N-UNCOUNT Air is the mixture of gases that forms the Earth's atmosphere and that we breathe. 空气

Draughts help to circulate air. 通风有助于循环空气。

Keith opened the window and leaned out into the cold air. 基斯打开窗户，探出身到冷风中。

2. N-UNCOUNT Air is used to refer to travel in aircraft. 空运

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。

3. N-SING Theair is the space around things or above the ground. 空中

Government troops broke up the protest by firing their guns in the air. 政府军通过朝天鸣枪驱散了这场抗议示威。

4. V-T If a broadcasting company airs a television or radio programme, they show it on television or broadcast it on the radio. 播放[美国英语]

Tonight PBS will air a documentary called "Democracy In Action". 今晚PBS电台将播放一部名为《民主进行时》的纪录片。

5. airingN-SING 播放

...the airing of a new television commercial that attacked the president's war record. …一个对总统的战争记录进行攻击的新电视广告片的播放。

6. V-T If you air a room or building, you let fresh air into it. 使通风

One day a week her mother cleaned and aired each room. 每周一天，她的母亲给每一个房间进行清扫并通风。

7. PHRASE If you do something to clear the air, you do it in order to resolve any problems or disagreements that there might be. 澄清视听

...an inquiry just to clear the air and settle the facts of the case. …一个只是澄清视听并确认事实的调查。

8. PHRASE If something is in the air it is felt to be present, but it is not talked about. 可感觉到 (但不说出来)

There was great excitement in the air. 人人都感到了无比的激动。

9. PHRASE 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. (人) 播报; (节目) 播放

We go on the air, live, at 11:30 a.m. 我们上午11:30进行现场直播。

10. PHRASE 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. 完全消失/突然神秘出现

He had materialized out of thin air; I had not seen or heard him coming. 他突然神秘地出现了；我既没看到也没听到他进来。