You can buy some of the discounted passes at ticket-vending machines in the same way as you buy normal tickets. Here is a short introduction of the way to do it.
There are basically 5 main steps.
Select the “Discounted tickets” or “Purchase a card” button.
Select the ticket you want from the list.
Choose and specify details of the ticket.
Put the money into the insection slot.
There you go! Take you ticket!
If things do not go well…
If you have troubles buying the ticket, try to press the call button or go to the ticket counter directly for help!
There are a lot more discounted passes out there apart from the ones introduced by us. If there is a “Discounted tickets” or “Purchase a card” button on the screen of ticket-vending machine, try to find the ticket that most matches your need!