N-UNCOUNT
(手機)漫游
Roaming refers to the service provided by a mobile phone company which makes it possible for you to use your mobile phone when you travel abroad.
例句
International Roaming is your digital mobile phone's passport to travel but the cost of calls is high.
國際漫游服務可使數字手機在全球暢通無阻，但話費卻很高。