air

• 包围地球的无形气体物质，为呼吸所必需并构成大气层。

A noun referring to the invisible gaseous substance surrounding the earth, essential for breathing and forming the atmosphere.

不可数

1. AtmosphereA1formal

   The invisible gaseous substance surrounding the earth, mixture of oxygen, nitrogen, and other gases.

   大气

   • We need clean air to breathe.
   • The air in the mountains is fresh and pure.
   • Birds fly through the air.

   同义词atmosphere

2. Atmosphere or mannerB1informal

   The particular feeling or atmosphere created by a person or situation.

   气氛或气质

   • She has an air of confidence about her.
   • The room had an air of mystery.
   • He spoke with an air of authority.

   同义词ambienceatmosphereauracharacterfeelingmienmoodqualitytonevibe

3. Melody or tuneB2formal

   A simple tune or melody, often in music.

   曲调

   • She played a beautiful air on the flute.
   • The composer wrote several airs for the opera.
   • That old folk air is still popular today.

   同义词laymelodysongstraintune

4. Travel by aircraftA2informal

   Travel by airplane.

   航空旅行

   • We travel by air to visit family abroad.
   • Air travel has become much cheaper.
   • The air from New York to London takes seven hours.

   同义词air travelaviationflightflying

• 动词，指通过电视、广播或其他媒体播出或传播内容；也可指公开发表或表达（意见、观点等）。

A verb used to express the act of broadcasting or transmitting something on television, radio, or other media.

1. Broadcast on television or radioB1formal

   To transmit a program or information on television or radio.

   播出

   • The documentary will be aired tonight.
   • The interview was aired live on national television.
   • They decided to air the controversial episode.

   同义词beambroadcastshowtelecasttransmit

2. Express publiclyB2formal

   To make known or express opinions or grievances publicly.

   公开表达

   • She aired her complaints at the meeting.
   • He aired his views on climate change in the newspaper.
   • The politician aired his grievances during the debate.

   同义词articulatebroadcastdeclareexpressproclaimstateutterventvoice

   反义词concealhiderepresssuppresswithhold

3. VentilateB1formal

   To expose something to fresh air for ventilation or drying.

   通风晾晒

   • Air the room by opening the windows.
   • She aired the blankets on the clothesline.
   • The laundry needs to be aired before folding.

   同义词aerateair outfreshenventilate

   反义词closecoverseal

短语动词变体air out