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

speciality/specialty; subject of study; subject of expertise; area of interest; profession

a house / one's own home / a home, household / a family

古: the past; ancient times

system, family / style

the past (period of time that has already happened)

to research, to study

a piece of research, a study, investigation