彼は長年にわたり職務に精励してきた。
He has devoted himself diligently to his duties for many years.
学業に精励した結果、奨学金を得ることができた。
As a result of studying diligently, she was able to win a scholarship.
社長は社員の日頃の精励に感謝の言葉を述べた。
The president expressed his gratitude for the employees' everyday diligence.