I use this regular service every week.

I am suffering from constipation.

This 便覽 explains the old history of Japan in detail.

We returned home on the last flight.

If you take this medicine, you will have defecation without difficulty.

He tried to take advantage of my success to gain his own benefits.

This collection tank is for a squat toilet.

The restroom of this building is on the second floor.

Gemination plays an important role in Japanese phonology.

Learning about the nasal sound rule in Japanese is very important for understanding pronunciation.