In female anatomy, the labia occupy an important part.

This shell's outer lip has a very beautiful pattern.

The columellar lip of this shell has a very beautiful shape.

He is studying the shape of the inner lip of the shell.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He has a deep interest in archaeology.

He was singing to himself alone in the room.

He is good at playing the harmonica.