holding under one's arm

to hold under one's arm

enter

classroom

pinch / between

hold, have

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

to go in; to come in / 要る: to be necessary, to be required