YOU SAID:

When the bronchioles in the lungs begin to narrow, not allowing air passage.

INTO JAPANESE

肺の細気管支が狭くなり、空気が通過できなくなるとき。

BACK INTO ENGLISH

When the bronchioles in the lungs become narrow and air cannot pass through them.

INTO JAPANESE

肺の細気管支が狭くなり、空気が通過できなくなる場合。

BACK INTO ENGLISH

When the bronchioles in the lungs become narrow and air cannot pass through them.