to start working seriously
真剣に働き始める (shinken ni hataraki hajimeru)
"If you want to pass the exam, you’d better buckle down and study."
"試験に合格したいなら、buckle downして勉強を始めたほうがいい。" (Shiken ni gōkaku shitai nara, buckle down shite benkyō o hajimeta hō ga ii.)
to spread rapidly, especially online
to refuse to give up or change your position
to convert data into a secure format to prevent unauthorized...
To make a sincere promise.
something very pleasing to hear
to increase pressure or intensity
