to waste time instead of working or studying
働くことや勉強する代わりに時間を無駄にする (hataraku koto ya benkyou suru kawari ni jikan o muda ni suru)
"If you goof off all semester, you’ll regret it during finals."
"もしあなたが学期中ずっと時間を無駄にしていたら、期末試験で後悔することになるでしょう。" (moshi anata ga gakki chuu zutto jikan o muda ni shite itara, kimatsu shiken de koukai suru koto ni naru deshou)
to direct efforts or plans toward achieving something
to publicly support or defend someone or something
to behave in a way that others should follow
to start communication with an individual or group
to reserve accommodation at a hotel or place
to attend or participate in an event
