英文關鍵字
abacus
accounting
ancient
antique
background
bead
black
business
calculation
calculator
chinese
count
education
finance
financial
math
mathematical
mathematics
object
old
retro
tool
vintage
wood
wooden
英文關鍵字
abacus
accounting
ancient
antique
background
bead
black
business
calculation
calculator
chinese
count
education
finance
financial
math
mathematical
mathematics
object
old
retro
tool
vintage
wood
wooden