someone else's concern or problem

the usual, ordinary

another, other, some other

to behave, to conduct oneself, offer (drinks or food)

always, invariably, all the time / usually / (with a negative verb) never

Alternative form of 他人事: other people's affairs; somebody else's problem

human affairs / personnel affairs/matters / human resources, HR

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