empty bottle

room; space / a gap / unused time / a vacancy

recycle

recycling

box (container) / box (compartment in a theater) / booth (enclosed table with seats at a restaurant)

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

chemical recycling

potential of 入る (hairu)