to enroll or participate in a collective action
集団行動に登録または参加する (shuudan koudou ni touroku mata wa sanka suru)
"Thousands join up for the beach cleanup drive."
"何千人もの人々がビーチクリーン活動に参加しています。" (Nansen ninmono hitobito ga biichi kuriin katsudou ni sanka shiteimasu)
to make a careless mistake while doing something
to add expenses together to get a total
to compare prices before buying something
to leave someone or something at a specific place
to begin taking on new responsibilities or positions during...
to relax and bring mental peace