石油化学: petrochemisry

specialist; expert

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

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

行く: to go, to come, to visit / 逝く: to pass away

(Kagoshima) Synonym of ようこそ (“an expression of appreciation at someone's arrival; welcome”)

敏之, 利之, 隼行, 利幸, 俊幸, 敏行, 俊之, 稔幸: a male given name / 利行, 聡之, 俊行, 年行: a male given name