This is the 7878th most frequent Chinese word.
鞠躬尽瘁
To dedicate oneself fully and tirelessly to a task or cause.
In this sentence, '鞠躬尽瘁' describes the subject's tireless devotion to achieving a goal, emphasizing self-sacrifice and hard work.
他鞠躬尽瘁，为了完成这个项目，夜以继日地工作着。
He dedicates himself completely to the project, working tirelessly day and night.
Here, '鞠躬尽瘁' is used to highlight the teacher's commitment and indefatigable efforts toward their responsibilities.
老师鞠躬尽瘁，为了学生的成长尽心尽力。
The teacher dedicates himself to the growth of students, putting forth unwavering effort.
In this example, '鞠躬尽瘁' conveys the long-term and ultimate dedication of an individual to a cause or mission.