to decide to do something without being asked or required
頼まれたり要求されたりせずに何かをすることを決める (tanomaretari youkyuusaretari sezu ni nanika wo suru koto wo kimeru)
"She decided to take it upon herself to organize the event."
"彼女はイベントを組織する責任を自分で引き受けることに決めました。" (Kanojo wa ibento wo soshiki suru sekinin wo jibun de hikiukeru koto ni kimemashita)
to achieve two things at once
to irritate or annoy someone without intending to
to exaggerate or make something seem more important than it...
the time or resources a startup has before it needs more fun...
a situation where all parties benefit
to pay for something, especially as a treat for others
