乗る前に買えます https://www.schiphol.nl/en/page/public-transport-and-the-public-transport-card/ Buying a public transport ticket at Schiphol At Schiphol, you can buy the single paper ticket at the blue-grey ‘Public Transport Tickets’ machines. These are located at the baggage reclaim area of Arrivals 3 and just outside Arrivals 3, at the escalators, up to Departures 3. In these ticket machines you can also buy your Amsterdam Travel Ticket.
チケットは買った方が良いのでしょうか? ご親切に券売機の場所まで教えてくださってありがとうございました。時間があれば買いたいと思いますが 運転手さんに直に払う方法を教えてくださるとありがたいです。