to start working seriously on something important
重要なことに真剣に取り組むことを始める (juuyou na koto ni shinken ni torikumu koto o hajimeru)
"I have to buckle down on my thesis this weekend."
"今週末、私は自分の論文にbuckle down onしなければなりません。" (konshuumatsu, watashi wa jibun no ronbun ni buckle down on shinakereba narimasen)
to gain control of one’s emotions
to absorb good energy and positive thoughts
to let intense feelings settle before responding
to wear special or formal clothes for an event
to behave badly or cause trouble
to be covered completely with snow
