英文關鍵字
age
banknote
bills
calculate
cash
casual
caucasian
check
concept
concerned
declaration
dollars
elderly
euro
expenses
expressive
fee
female
grandma
grandmother
granny
gratuity
happy
healthcare
healthy
insurance
investment
medicine
money
natural
old
pension
pensioner
people
profit
retiree
retirement
reward
rich
salary
secure
senior
smile
social
success
tax
tip
wealth
white
woman