The younger ones are called little sisters or brothers, and the older ones are called aunts or uncles.

Train attendants are divided into conductor, caterer and cleaner.

What they need to do is:

Open the door at the station and close the door before driving to ensure the safety of passengers getting on and off;

Put order in order and don't let anyone disturb public places at will;

Appropriate sales of some products, such as snacks, drinks, fast food, daily necessities, etc.

Responsible for the environmental sanitation of the carriage;

Answer passengers' questions about train arrival and running time;