英文關鍵字
accountant
accounting
addition
apparatus
appliance
billing
bills
budget
business
businessman
calculate
calculating
calculation
calculator
calculus
cash
clicking
college
commercedebt
compute
data
decimal
denomination
device
digit
financial
finane
fractions
homework
infesting
instrument
investments
investor
loans
machine
male
man
math
mathematical
modern
old
paying
planning
portfolio
retirement
retro
ruler
savings
soviet
vintage