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

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

a piece of research, a study, investigation

to research, to study

組織学: histology

高祖母: great-great-grandmother

a remote ancestor / (more narrowly): an ancestor four generations back: a great-great-grandparent, a grandparent of a grandparent / (Chinese history) the founder of a dynasty

(biochemistry) enzyme