英文關鍵字
3d
abstract
banking
banknotes
binary
bit
business
cable
cash
code
commerce
communications
conceptual
connection
currency
cyberspace
digital
digitally
dollar
electronic
finance
flow
flying
green
industry
information
internet
line
money
network
online
paper
remittance
shopping
tech
technology
trading
transaction
transfer
tunnel
virtual
web
www