He lost his sense of smell due to damage to his olfactory nerve.

Olfactory cells play an important role in allowing us to sense smells.

This factory is our main source of supply.

Zen is a festival ceremony performed by the Chinese emperor.

Through the practice of Zen, I gained peace of mind.

She repaired my jeans using the darning technique.

He was counting money.

I plan to finish my work in the forenoon.

By learning the imperfective form, you can understand Japanese grammar more deeply.

After a cold front passes, the temperature drops sharply.