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Alveolus
01
one of the tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged with the blood
грамматическая информация
Примеры
Each alveolus is surrounded by a network of tiny blood vessels.
02
a bony socket in the jaw that holds the root of a tooth
Примеры
The tooth root sits firmly inside the alveolus.
LanGeek
