ventilation
/ˌventɪˈleɪʃən/noun
mass noun
1
- the provision of fresh air to a room, building, etc.通风; 换气。
1.1
- Medicine the supply of air to the lungs, especially by artificial means【医】（尤指人工）给肺提供空气。
2
- public discussion or examination of an opinion, issue, complaint, etc.（对意见、问题、抱怨等的）公开讨论（或调查）。
词源
late Middle English （in the sense 'current of air'）： from Old French, or from Latin ventilatio（n-）, from the verb ventilare （see VENTILATE）. Sense 1 dates from the mid 17th cent.