It seems that the mortise of this old furniture is loose.

As a carpenter, he has mastered the technique of making mortises.

The six holes of the human body play a very important role.

Mr. Anakubo is my friend.

I found a common rabbit in the park.

He was observing the outside through the peephole in the door.

He was so ashamed of his failure that he wished he could crawl into a hole.

He inserted his finger into the anus.

The triple point of water refers to the special state where the three phases of solid, liquid, and gas coexist.

There was not a speck of dirt on his shirt.