Oyster card
noun[C]
uk/ˈɔɪ.stə ˌkɑːd/us/ˈɔɪ.stɚ ˌkɑːrd/asmallplasticcardthat can be used as amethodofpaymentonbuses,trains, and theundergroundin London
（在伦敦公共交通系统内用来支付车费的）八达通卡Tickets
- accommodation
- apex
- boarding pass
- coach class
- e-ticket
- economy class
- half
- hall pass
- pass
- rain check
- round fare
- round-trip ticket
- season ticket
- single
- standby
- supersaver
- ticketing
- ticketless
- timed ticket
- transferable