His voice felt very warm.

They (referring to women or girls) are my best friends.

My father works at a semiconductor company.

She specializes in the study of the amygdala.

Glycosides, which are compounds combined with sugar, are widely found in nature.

He started playing the guitar and hummed the opening words to the song.

This species of snail is hermaphroditic, capable of self-fertilization.

He tried singing a new song.

He tried singing the new song.

The motion of rigid bodies is an important field in physics.