David attributed his company's success to the unity of all the staff and their persevering hard work.

大卫说他们公司之所以功是由于全体员工的团结和坚持努力工作的结果。

He is a persevering student.

他是个有恒心的学生。

Success belongs to the persevering.

胜利属于屈挠的人。