What is the difference between a recruitment specialist, an HR assistant, and an administrative clerk? What are their job contents? Which one is more promising?

Recruitment specialists are similar to assistants. They are responsible for company employee recruitment, interviews, handling some employee entry and exit procedures, social security, and other matters. Administrative clerks do odd jobs, just like the front desk. They are responsible for collecting express delivery, having people come to the company to guide the tea and water service, assisting with attendance statistics, ordering water, ordering meals, and printing. Of course, the promising ones are HR assistants. After working for a long time and gaining experience, it would be good to directly become the HR supervisor or do human resources.