ven·ti·la·tion /ˌvɛntḷˈeʃən/
  通風,空氣流通,公開討論
  ventilation
  自( 行 )通風; 自冷
  ventilation
  通風
  Ven·ti·la·tion n.
  1. The act of ventilating, or the state of being ventilated; the art or process of replacing foul air by that which is pure, in any inclosed place, as a house, a church, a mine, etc.; free exposure to air.
     Insuring, for the laboring man, better ventilation.   --F. W. Robertson.
  2. The act of refrigerating, or cooling; refrigeration; as, ventilation of the blood.  [Obs.]
  3. The act of fanning, or winnowing, for the purpose of separating chaff and dust from the grain.
  4. The act of sifting, and bringing out to view or examination; free discussion; public exposure.
     The ventilation of these points diffused them to the knowledge of the world.   --Bp. Hall.
  5. The act of giving vent or expression.  “Ventilation of his thoughts.”
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  ventilation
       n 1: the act of supplying fresh air and getting rid of foul air
            [syn: airing]
       2: a mechanical system in a building that provides fresh air;
          "she was continually adjusting the ventilation" [syn: ventilation
          system, ventilating system]
       3: free and open discussion of (or debate on) some question of
          public interest; "such a proposal deserves thorough public
          discussion" [syn: public discussion]
       4: the bodily process of inhalation and exhalation; the process
          of taking in oxygen from inhaled air and releasing carbon
          dioxide by exhalation [syn: breathing, external
          respiration, respiration]