自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
N-UNCOUNT 空气；大气 Air is the mixture of gases which forms the earth's atmosphere and which we breathe.
Draughts help to circulate air...
Keith opened the window and leaned out into the cold air.
N-SING 天空；空中；空间 The air is the space around things or above the ground.
Government troops broke up the protest by firing their guns in the air...
People's cigarette smoke seemed to hang in the air.
N-UNCOUNT 空运；航空 Air is used to refer to travel in aircraft.
Air travel will continue to grow at about 6% per year...
Casualties had to be brought to hospital by air.
N-COUNT （简单易记的）曲调，旋律 An air is a simple tune which can be easily recognized and remembered.
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.
Jennifer regarded him with an air of amusement...
The meal gave the occasion an almost festive air.
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.
We're poor and we never put on airs.
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.
Tonight PBS will air a documentary called 'Democracy In Action'.
VERB 使公开；宣扬 If you air your opinions, you make them known to people.
They sat for more than six hours, and both sides agreed they had aired all their differences...
The whole issue was thoroughly aired at the meeting.
VERB 使通风 If you air a room or building, you let fresh air into it.
One day a week her mother systematically cleaned and aired each room.
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.
When the shirts were clean, I ironed them myself, aired them and placed them in drawers in his room.
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.
...an inquiry just to clear the air and settle the facts of the case.
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.
The old cliché of the customer being always right is what gives them airs and graces.
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.
There was great excitement in the air...
She walked away and left the question hanging in the air.
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.
She is going on the air as presenter of a new show...
Rockwell hopes the program can be on the air within a year...
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.
'But where could they have gone?' he demanded. 'They can't just vanish into thin air!'...
He had materialized out of thin air; I had not seen or heard him coming.
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.
He told reporters today that the president's trip to Moscow is up in the air.
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.
As soon as I know I'm in the team it's like I'm walking on air.