don't worry about it, never mind, you're fine

to work hard and do one's best to achieve a goal / to strive unrelentingly in the face of difficulty, to persevere

conjunctive form of 頑張る (ganbaru) [godan] / do your best, good luck, keep at it, don't give up, hang in there

(imperative, exhortation) do your best, good luck, hang in there, come on, don't give up, keep going

Pounding on a wall to indicate to a neighbor that they are noisy.

don (mafia boss) / (by extension, informal) leader

dong (Vietnamese currency)

examination, exam, test / quiz

one's own

落ちる: to fall