airiness
  通風,空氣流通,空虛
  Air·i·ness, n.
  1. The state or quality of being airy; openness or exposure to the air; as, the airiness of a country seat.
  2. Lightness of spirits; gayety; levity; as, the airiness of young persons.
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  airiness
       n 1: the property of something spacious and abounding in fresh
            air
       2: the property of something weightless and insubstantial [syn:
           buoyancy]
       3: lightness in movement or manner [syn: delicacy]