Yes, you can book a round-trip train ticket. There are some rules and restrictions when buying round-trip tickets. For example, to buy a round-trip ticket, you must buy it at the starting station of the journey, and the departure date of the round-trip ticket is later than the departure date of the journey ticket. In addition, for connecting tickets, you must go and return at the bus stop on the way. The joint ticket must be purchased at one time, and it is not allowed to purchase the joint ticket separately.

It should be noted that in the process of purchasing tickets, it is necessary to confirm whether there is a direct return train ticket at the station. If not, you can try to buy tickets by installments or use other modes of transportation. In addition, when purchasing discount tickets for students and disabled people, we need to pay attention to relevant policies and requirements.

Generally speaking, you can order round-trip train tickets, but you need to comply with relevant regulations and restrictions. It is recommended that you read the relevant policies and requirements carefully before purchasing tickets, and communicate clearly with the staff during the process of purchasing tickets to ensure that you can buy the right tickets.