Banking 场景 (很重要)

　　1 Account :

　　current account;deposit account;student account

　　chequecard&chequebook

　　2 service:

　　interest rate ( 利息)

　　Exchange rate

　　debate (不长考)

　　Full refund (全额退款)

　　3 Bank book/pass

　　signature card(借记卡)+cash card

　　overdraft:

　　permission of bank/interest rate

　　fine installment

　　personal loan student loan