动词
中文翻译：努力工作
同义词：
['work hard', 'study hard', 'study diligently']
例句：
-
1. She is always working hard to improve her English.
她总是努力提高她的英语水平。
-
2. He studied hard and eventually passed the exam.
他努力学习，最终通过了考试。
-
3. The student studied diligently and achieved good results in his exams.
这个学生勤奋学习，他的考试成绩很好。