at the peak of activity or excitement
活動や興奮の頂点で (katsudou ya koufun no chouten de)
"The party was in full swing when we arrived."
"私たちが到着したとき、パーティーは最高潮に達していました。" (Watashitachi ga touchakushita toki, paatii wa saikouchou ni tasshiteimashita.)
to listen carefully or give thought to something
to summarize something briefly
to argue or stop being friends with someone
very stupid or slow-witted
to understand or solve something by combining information
someone who looks exactly like another person