air-bladder
air-bladder
n (in animals and plants) bladder filled with air （动植物的）充有气体的囊, 鳔, 气囊.
牛津英汉双解词典
edrTRBnvbvbfdvEzudIdQg1m88q5imAx0fJs98kZOqu6gcmlb31bzg
4b652ea0a73ed30838cbcb11b1b96615
Stop