check-in

辦理的英語翻譯：

transact; transaction
【法】 transact; transaction

登記的英語翻譯：

register; book; check in; enroll; enregister; inscribe
【計(jì)】 journaling; log-in; registration
【醫(yī)】 register; registration
【經(jīng)】 book the order; enrollment; keeping of record; recordation; register
registration; registry

手續(xù)的英語翻譯：

formalities; procedure
【醫(yī)】 procedure