to stay motivated and passionate about something
何かに対してモチベーションと情熱を持ち続ける (nanika ni taishite mochibēshon to jōnetsu o mochitsuzukeru)
"Even after failure, he managed to keep the fire burning."
"失敗しても、彼は情熱を持ち続けることができました。" (Shippai shite mo, kare wa jōnetsu o mochitsuzukeru koto ga dekimashita.)
to try to achieve something difficult or ambitious
someone suddenly understands something
something good that happens by chance
a person who only works becomes dull and boring
after a long time; in the end
to formally approve something