assiduity

例句：

1. 1. He isknown for his assiduous effortsin research.
   他因在研究中的勤奋努力而闻名。
2. 2. The student's diligence has paid off with excellent grades.
   这位学生的勤奋工作已经得到了优异的成绩回报。
3. 3. The teacher praised the students' zeal for learning.
   老师赞扬了学生们对学习的热忱。