to conquer, to defeat / to overcome

an effort, an endeavor

to endeavor, to make an effort

difficult, trying, hard

difficulties, hardship, trouble

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

as hard as one can; to the best of one's ability

dyspnea, labored breathing