彼は友人の成功に発奮して勉強に励んだ。
Spurred on by his friend's success, he threw himself into his studies.
初戦の敗北に発奮したチームは、その後連勝を重ねた。
Stirred into action by losing their opening game, the team went on a winning streak.
監督の厳しい言葉が選手たちの発奮を促した。
The manager's harsh words spurred the players on.
試験に落ちたのをきっかけに発奮し、翌年は首席で合格した。
Failing the exam roused him to action, and the following year he passed at the top of the list.