air-bladder

n (in animals and plants) bladder filled with air （动植物的）充有气体的囊, 鳔, 气囊.

ain't, air, air base, air brake, Air Chief Marshal, air commodore, air force, air hostess, air jet, air letter, Air Marshal, air pocket, air pump, air raid, air rifle, air speed, air terminal, air traffic controller, Air Vice Marshal, air-bed, air-conditioned, air-conditioning, air-cooled, air-cushion, air-flight, air-hostess, air-raid, air-resistance, air-sea, air-to-air, air-waves, airborne, airbrush, Airbus, airconditioner, aircraft, aircraft carrier, aircraft-carrier, aircraftman, aircraftwoman,