With a baby's lungs, they may be 10% to 30% damaged now but the lungs, unlike most other body parts, regenerate and grow more air sacks (alveoli).
(they; may be; 10% to 30% damaged now) (they; damaged; T:now) (the lungs, unlike most other body parts; regenerate; )
they they the lungs, unlike most other body parts
may be damaged regenerate
10% to 30% damaged now
T:now