This book explains in detail how to use the 'Kyūjitai form of 声門' in old Japanese.

There is a large sluice gate in this river.

This organism is classified into the subphylum.

A baby's fontanelle closes a few months after birth.

A baby's fontanelle naturally closes a few months after birth.

I am planning to go to Xiamen next week.

I am planning to go to Amoy next week.

He was studying ancient documents and found the character '黃門'.

He sneaked into the school through the back gate.

This sluicegate is used to regulate the water level of the river.