In order to solve this quantum mechanics problem, we need to find the eigenfunction.

My friend came from the Republic of Korea.

My daughter works as a signboard girl almost every day.

He seems to embody the word 'flawless'.

He was immersed in music.

He is good at distinguishing music genres.

His sword pierced the enemy's defense.

My father is spreading phosphate fertiliser in the field.

He is my best companion.

This offspring cannot yet be separated from its mother.