Kyūjitai form of 生態学 (“ecology”)

interest

Kyūjitai form of 古生態学: paleoecology

very; extremely / exceedingly; tremendously

extraordinary, unusual

emergency

ecology, mode of life of living creatures / way of life, the way people live

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