Definition
to persistently engage in hard work, particularly when facing challenging tasks
努力苦幹
He decided to plug away at learning the language, despite the many difficulties he faced.
他决定坚持不懈地学习这门语言，尽管面临许多困难。
Despite the slow progress, the team kept plugging away at the project with dedication.
尽管进展缓慢，团队仍然全力以赴地投入这个项目。
She plugged away into the late hours before the exam, ultimately succeeding in passing.
她在考试前一直坚持学习到深夜，最终成功通过了考试。