(idiomatic) to be extremely or excessively vigilant

the previous day; the day before

to study / to discount, to reduce the price of something

studying, studies, study

Alternative form of 勉強

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

examination, exam, test / quiz

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

sensitivity / (anatomy) nerve