英文關鍵字
american
background
bank
banking
banknote
bills
bit
bitcoin
blockchain
btc
business
buy
cash
coin
concept
crypto
cryptocurrency
cryptography
currency
digital
dollar
dollars
ecommerce
economy
electronic
exchange
finance
financial
gold
golden
internet
investment
market
metal
mining
money
network
pay
payment
sign
symbol
trade
virtual
web